Growing marijuana indoors is a creative and nuanced task that requires a different set up depending on how you grow. The way your grow room is set up depends on whether you’re growing the seedlings and clones in the same environment or different spaces. One thing that remains constant regardless of your grow room is that you need grow lights.
There are hundreds of LED grow lights, but not all of them are right for your grow room. So, how do you find the right one? Choosing the right LED light will help you and your plants in the long run. Investing in high-quality lights means you won’t have to worry about maintaining heat conditions hands-on or deal with replacing light bulbs that keep burning out.
Each growing method requires a suitable temperature and environment, which you’ll find with all of the lights on this list. Depending on your grow rooms size and shape, you’ll need to choose either one powerful light or multiple lamps. Your plants also require different lights during the different phases of growth.
How to choose the best LED grow light
If you’re looking for a highly efficient light that is compact, durable and has an extended use life LED grow lights are the best option. They run nearly 70% cooler than the HPS lights, which means fewer exhausts in your grow room. They also last longer than CFLs or Halogens, which means you have to replace bulbs less frequently than other light types.
But choosing the best LED light for your grow room is a process in itself. It’ll take some research and a bit of trial and error to find exactly the right light for your grow style. The light you choose depends on different factors. These factors include the size of your room, the kind of plants you are growing (seedlings or clones), and how well you maintain the temperature and environment. It also depends if you want an all-purpose light or you want separate lights to work with the plant at its different growth stages.
The Best LED Grow Lights Online in 2020
Now that you have some ideas on how to choose the right lights for you, let’s take a look at some of the top brands in the market for growing marijuana indoors.
After rigorous research and reviewing hundreds of products, we’ve hand-picked the top-rated LED grow lights on the market in the USA. These lights come with a range of features, so no matter your needs, you’ll find the right one to suit your grow room. Out of hundreds of brands, we’ve narrowed this list down to the top 15 best grow lights in different price ranges, coverage areas, and suited for various environments.
You’ll be able to choose LED grow lights are right for your grow room, your budget and skill level. We’ve combined detailed information on the best lights combined with expert reviews and recommendations that will help you to grow high-quality marijuana. Now let’s walk you through our top picks for the best grow lights to that your grow room is set and ready to grow.
Let’s get started!
The 15 Best LED Grow Lights We Reviewed:
- Advanced Platinum Series P1200 editor’s choice
- Advanced Platinum Series P900
- Advanced Platinum Series P300
- VIPARSPECTRA Reflector-Series 900Wbest LED for the money
- VIPARSPECTRA PAR600 600W
- VIPARSPECTRA Reflector-Series 450Wbest grow light under $300
- BESTVA 2000W Double Chips
- BESTVA 1000W Double Chips
- King Plus 800Wbest grow light under $200
- King Plus 600W
- Apollo Horticulture GL60LED Full Spectrumbest grow light under $100
- MarsHydro Mars 600W
- MarsHydro Reflector 480W
- Galaxyhydro 300W LED
- HIGROW Optical Lens-Series 1000Wbest light under $400
1. Advanced LED Platinum Series P1200-
To grow cannabis indoors, you need to provide the right amount of light to your plant to produce better yields. If allowed, cannabis grows the best in sunlight and the natural environment. But it can still grow very nicely indoors provide a well-lit environment to your marijuana to grow indoors.
The Advanced LED Platinum Series is a trusted name in the world of growing marijuana indoors. But does it live up to its price tag?
The best feature of the Advanced LED platinum series lights is that they keep your grow room cool while providing your plants an adequate amount of light. It includes 12 wavelengths of light including infrared and ultraviolet spectrums which are invisible to the naked eye. This means your plant is getting light that is as close to natural sunlight as possible in an indoor environment. These lights also have selectable Veg/Flower switches so that you can modulate the light according to the growing phase of your plant.
Their all-new upgraded aluminum fans include high speed whisper quiet fans with 8x speed. There is no doubt why the Platinum series P1200 is an excellent buy if you are looking for a reliable grow light for your grow room.
They use 90-degree focused lenses that disperse the light far enough to reach the canopy of your grow room and reach all your plants within a 4×6 radius.
It might seem like a 1200 watt bulb would cost you more in electricity, but using a higher watt bulb will save you electricity costs in the long run. The P1200 can easily replace a 1000-watt HPS light at full intensity and only uses approximately 515 watts of electricity. This means that running the P1200 LED in your grow room will cost you nearly half in electricity costs compared to using a 1000 watt HPS light.
The Platinum P1200 performs the best when suspended at least 18-inches above the plant. At this height, it covers 6.0 x 5.5 square feet of the growing area. The area might vary depending on the growth stage of your plant, so you may need to adjust the height of the lights at different growing stages. When the plant is at its initial growth stage, you can use a lower intensity light.
If you have the budget, it’s worth it to spring for the P1200 model. It comes with a 5-year warranty and 90-day money-back guarantee.
Here’s a short video that covers even more features of the Advanced LED Platinum Series P1200
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2. Advanced LED Platinum Series P900 LED Grow Light
The second LED light on our list is also from the Advanced LED Platinum series. The P900 model is another superb grow light that will help you to produce excellent quality cannabis indoors.
It offers three times more intensity of light compared to other competing grow lights at the same price range. The Platinum series LED lights provides the highest Par/Lumen light output per watt of any LED grow light we’ve seen. The P900 can replace a conventional 1000 watt HPS grow light easily while consuming just 557 watts of actual power.
Adding to the efficiency, it provides your cannabis with a light source that creates a maximum photosynthetic response. With this light, plants experience a near replicate of a natural environment.
This light supports the full growing process, and you won’t have to supplement any additional lamps for nurturing your plant. With the P900, you can carry out a full-scale commercial operation since it supports the growth of your plant from seedling to flowering.
When using this light, it’s recommended that you use multi-panel set-ups. Most P900 users have 5×5 grow tents, or sizeable hydroponic flood trays as part of their setup to get the best results.
Like the P1200 model, the P900 also covers 12 different rays of the light spectrum. The mixture of UV light and IR rays provides your plant with the best light conditions, and mimic natural sunlight. The adjustable angles of the light support help to penetrate the canopy of your grow room so that your plant can get complete nourishment and produce deep roots.
Veg Phase Feature
This LED also contains switches for Veg and Bloom phases. The Veg phase consists of a purple/blue light spectrum, which mostly favors the development of the leaves. During the boom phase, switch to the pink/red range for a better output. You can use the dimmable switch when you want a low-intensity light to help your plant reach the sprouting stage. This can be changed to the bloom setting when you need high-intensity light to nurture the plant.
When it is suspended 18 inches above the plant, the rays can easily cover and reach 3x5feet and up to 4×6 feet at the right angle.
3. Advanced LED Platinum Series P300
The last model in the Advanced LED Platinum Series, the P300, is suitable for those who have a small grow space but still, want a solid light for their space. This is probably the most affordable LED grow light for the quality you’re getting.
By now, you know that the Platinum LED grow lights are one of the most powerful and energy-efficient grow lights on the market.
Like the others, the P300 offers a complete 12-band spectrum, which ensures that your grow room stays cool while maintaining the maximum light exposure needed for growing high-quality marijuana. The P300 model replaces the conventional 400-watt HPS grow light while only consuming 180 watts of actual power. It provides your plants 100% usable light that is genuinely blended to create a maximum photosynthetic response.
The P300 is a good choice if you are looking for an affordable grow light and the right choice if you want to use multiple P300 LEDs in your grow room. They are ideally suited for all growth phases of your plant.
It’s no secret that full-spectrum lights are better for plant growth. The P300’s success is due to its combination of 12 full-spectrum light bands offering a complete spectrum of light from ultraviolet to upper IR. This combination helps the growth of your cannabis because the light pattern is similar to the one provided by natural sunlight.
All the LED chips in the lamp are 3 watt LEDs and help you achieve maximum light while consuming as little energy as possible. LED lights that contain COB LEDs (Chips on Board) are lighting packages that save more energy and have an even higher lifespan than regular LEDs.
The coverage area of the P300 covers slightly less than what is covered by the P600. It can cover about 4.5 x 3.8 square feet in grow area when suspended 18 inches above the plants.
Like the other two models discussed above, the P300 also has selectable Veg and Bloom light spectrums. You don’t have to worry about using any other grow light from the initial seedling phase until full harvest.
The Advanced LED Platinum series P300 grow light also comes with a power-packed 5-year warranty and 90-day money-back guarantee. Any of the products in the Advanced LED Platinum Series are perfect for a variety of grow rooms and budgets.
4. Viparspectra Reflector-Series 900W-Best Affordable LED Grow Light for the Money
Coming in as one of the most affordable grow lights on the market, the Viparspectra is a fan favorite when it comes to inexpensive grow lights. Viparspectra is a trusted label in the grow light industry and is known for making high quality LED grow lights at an affordable price.
By now, you probably know that marijuana grows best under natural sunlight. As a grower, you should understand that while growing marijuana indoors is very much possible, you need to create an environment that replicates natural sunlight. The closer your lights are to real sunlight, the higher quality product you’ll grow.
This is only possible by using a good LED grow light in your grow room. The Viparspectra 900W offers a full spectrum layout. It’s upgraded aluminum cooling chamber helps you to maintain a decent temperature and prevents your grow room from overheating.
The Viparspectra range is perfect for professionals as well as first-time growers. Many new growers don’t realize the importance of a suitable intensity light and opt for cheaper models. This model is a perfect starter model because it offers the power of an expensive LED light at a lower price point.
The Viparspectra 900W is scientifically engineered to keep the balance of the Lumen/PAR output and coverage of the light it emits. Being a full-spectrum light, it is suitable for plants and supports throughout all stages of growth. Not only that, it can easily replace a 1000 watt HPS/MH while consuming only 418 watts.
This high-intensity light can cover an area of 4×3 square feet when suspended 24 inches above plants. To control the inside environment of the growing room, the 900W model supports a 4.7-inch fan which will help dissipate excess heat and keep your grow room cool.
When you buy the Viparspectra you’ll get a 3-year manufacturers warranty along with 30-day easy replacement service if you run into any issues with your light.
5. Viparspectra PAR600- Most Popular LED Grow Light
We can’t mention Viparspectra products without reviewing their bestselling model, the PAR600.
The PAR600 can replace a 600W HPS light while only consuming 276 watts of actual power. This is the main reason why indoor growers prefer to use this LED grow light. These lights are both energy-efficient and long-lasting. The PAR600 shares feature similar to other Viparspectra models such as being a full-spectrum light and supporting every stage of plant growth.
The PAR600 can handle cannabis plant growth by providing enough high-intensity light that you won’t have to use any supporting lights in your grow room.
This model runs 70% cooler than the conventional LED lamps and HPS lights. It features a highly experimented design that’s perfect for growing high-quality cannabis with bigger flowers and high yield. The LED can cover a space of 3.0 x 3.0 ft when suspended 24 inches.
The manufacturer claims the average lifespan of the LED is up to 100,000 hours. That means you won’t have to replace your light for a while, making it a worthy purchase for the cost.
This light also comes with a 3-year warranty and 30-day return policy from the manufacturer. You can read the customer reviews and then decide for yourself if it would be a good fit for your grow room. For even more info, you can refer to the detailed Viparspectra 600W review on our blog.
6. Viparspectra Reflector-Series 450W-
Best LED Grow Light Under $300
The process of growing marijuana has evolved a lot over the past ten years. Many of the conventional grow systems have been upgraded and replaced with newer methods, and the same goes for grow lights as well. You no longer need a big and expensive operation to grow marijuana. You can do it indoors, and on a budget.
The Viparspectra Reflector-Series 450W proves this by offering 200 watts of LED power for under $300. It closely mimics the amount of light produced by the sun guaranteeing a high yield plant every time.
Before you start experimenting with HPS or other grow lights, consider the money you’ll spend on equipment while conducting your initial trial and error.
Many people have this in the past and ultimately landed on full-spectrum LED lights as the easiest and more cost-effective option for growing quality cannabis plants.
Adding to the collection of full-spectrum LEDs, the Viparspectra “Reflector Style” V450 LED grow light is a popular product for its price point and power. The manufacturer claims that they have performed various tests and experiments to design the V450 to be the LED light that ends all other lights.
The V450 has a full spectrum layout with a reflector design and upgraded aluminum cooling sinks. It is an ideal product for growing indoor plants because it’s both durable and long-lasting in term of built quality.
Similar to the Platinum series we covered, the Viparspectra will help your marijuana to grow from the initial seedling stage to the flowering stage. You won’t need any other supplemental light to support the different growth stages of your cannabis.
The Viparspectra 450W is scientifically engineered to keep a balance with Lumen/PAR value and proper coverage. The LED can cover a maximum coverage of 3.5 x 3.5ft when suspended at 24 inches. The 450W model also comes with a daisy chain plug which lets you string together multiple sets of the same light, or even some different models if they also contain daisy chain ports.
It also runs much cooler compared to the conventional lamps and HPS lights which account for about 70% more heat in your growing room.
According to the manufacturer, the lifespan of the Viparspectra 450W is more than 100,000 hours which in turn is much better than conventional lamps can become unreliable after about a year of use.
7. Bestva 2000W Double Chips
The Besta 2000W is also another full-spectrum light that offers a high light Par/Lumen output when it comes to LEDs. It comes with dual-chip LED technology which produces much brighter and more energy-efficient light compared to the traditional set of 3W and 5W LEDs.
Like other full-spectrum light’s we’ve seen, it helps nurture the plant from the vegetative growth stage to the flowering stage.
Just as a reminder, full-spectrum lights offer an intensity which is similar to that of sunlight. As you know, marijuana grows best in natural sunlight, so it’s suggested to use a full spectrum light over a standard light lamp or HID/HPS lights.
The Bestva 2000W can be compared to a 1400W HPS, and only consumes 390 watts. The manufacturers also promise that the Bestva 2000W is twice as effective in coverage compared to any other reflector series light. The total coverage is 7.8 x 7.5 ft when the light is suspended 24 inches from the plant.
Again, as compared to their big competitors like the Platinum Series and Viparspectra, the Bestva also comes with a three-year warranty with a 30-day money-back guarantee.
The light is suitable for big grow rooms and is a good buy for a long-term cannabis grower.
8. Bestva 1000W Double Chips
Now let’s talk about one of the most anticipated grow lights on our list. The Bestva 1000W is a smaller version of its parent 2000W model and has some of the best customer reviews we’ve seen.
It comes with dual-chip technology, which makes this LED grow light much brighter than the usual 3W and 5W LEDs.
Marijuana needs proper nourishment to grow to its maximum capacity. The Bestva 1000W LED grow light is perfect for supporting its different growth stages.
The full spectrum high-intensity light is enough to create a system that reacts similarly to sunlight. It helps the plant to grow from a seedling to the flower, and you won’t need an external supporting light for nourishing the plant.
The Bestva 1000W also comes with a powerful cooling system that helps your grow room stay cool without the installation of extra exhaust fans to remove heat from the room. The aluminum heat sink panel has holes which help the LED to run 50-60 ℉ lower than grow lights. The best part, the 1000W LED grow light can be compared to a 600-watt HPS, but only uses about 185 watts of power. This is nearly twice as efficient as other lights we’ve seen.
The light covers an area of 5.2 x 4.7 ft when suspended 24 inches of height above the plant. Many people prefer to keep an 18-inch height but, 24 inches is the preferred height by the Bestva team.
You can experiment with light heights by creating a section in the grow room where you keep the height of the grow light at 18 inches. Then hang it at 24 inches in another area of the room, and compare the results of the two.
The heights won’t make a huge difference or affect your plant poorly, but it will let you see which system produces the best results.
With the 1000W model, you will also get a 3-year warranty along with 30 day money back guarentee. You can learn more about this light by reading this review on our blog.
9. King Plus 800W- Best LED Grow Light Under $200
Now we’re getting to some of the more affordable LED grow lights we’ve seen. We can’t talk about high-quality, affordable lights without mentioning the King Plus 600W LED Grow Light.
This grow light is more efficient than conventional LEDs, regular light lamps, and even HPS lights.
The best part about the King Plus 800W is that it has two diodes. This means that even if one of the diodes malfunctions, the light would still work because of the second diode. Single-diode lights put your plants at risk if one of the lights get damaged.
This light is called “600W,” but it doesn’t actually use 600 watts of power. It only uses 150 watts of actual power, making it highly efficient as to other lights.
The King Plus 800W is a full spectrum light that includes IR, UV, red, yellow, white, and blue light. It allows your plant to get light that as similar to natural sunlight as possible. This is ideal for growing marijuana indoors. Lastly, you can expect your plant to grow from a seedling to a flower with this light without needing any external supporting lights.
Since full spectrum LED grow lights are cooler than conventional fluorescent lamps, you don’t have to worry about your grow room overheating. The King Plus 800W model comes with holes on its LED board as well as fans for more efficient heat dissipation.
Overall, the King Plus 800W is a great buy for the price. It comes with a two-year warranty along with the manufacturer’s 24-hour customer service team that can help with any issues with the light.
10. King Plus 600W
If the King Plus 800W is too much for your grow room, you can go for slightly less powerful King Plus 600W version. If you don’t have a big budget or if you have a small grow room, the 600W is a prime choice. Like the 800W LED, the 600W version is an excellent LED for growing high-quality marijuana.
The 600W double-chip LED is also brighter and more efficient than the traditional 3W and 5W LEDs. It has a lifespan of more than 50,000 hours as claimed by the manufacturers.
The LED consumes only 120 watts of power and is more energy-efficient than HPS and fluorescent lamps.
The King Plus 600W model is suitable for growing indoor plants as it’s powerful enough to support the plant from veg state to flowering state. The full spectrum light is also comprised of red, blue, yellow, white, IR, and UV to replicate the environment of and outdoor grow area.
The King Plus 600W comes with a well-equipped system for natural heat dissipation. It has two fans, which enable a smooth circulation of heat so that your grow room always stays cool.
The manufacturers developed the light by conducting rigorous research and development so that they can make an astounding product that helps you to grow higher-quality marijuana.
The 600W covers a decent grow area of 3.0 x 3.4 ft when it is suspended 18-24 inches above the plant. The manufacturers have also suggested the best lighting time setup. For the vegetative stage, it is recommended to keep the LED ‘On’ for 12-14 hours, for the flowering stage, it is recommended to run the lights 9-12 hours. For the fruiting stage, the time suggested is 7-8 hours.
Overall, the King Plus 600W LED is a great option that has tons satisfied customer reviews from marijuana growers.
11. Apollo Horticulture GL60 LED Full Spectrum- Best LED Grow Light Under $100
The Apollo Horticulture GL60LED full-spectrum 180W is the most affordable LED grow light we’ve seen. This full-spectrum LED is a great affordable option if you are looking to set up an astounding grow room for growing marijuana or any other indoor plant. It’s one of the best substitutes for natural light, for growers on a budget.
When compared to other models, the GL60LED model is round while most of the grow lights are either rectangular or square-shaped.
This 180W LED emits less heat than most LED lights, and it doesn’t require ballasts. This means that your marijuana will stay safe even if the light is placed very close to it. To manage the heat levels, the LED comes with a cooling system, which helps maintain the temperature and promote easy dissipation of heat.
The LED is made from stainless steel which protects the hanging kit from corrosion due to the moisture that is generated by the plant’s transpiration process. In addition to its quality, it also has a decent lifespan of more than 50,000 hours. This light uses only about 109 watts of power, making it both durable and energy-efficient.
Its maximum coverage is 2.5 x 2.5 ft when suspended 18 inches above the plant. Like the other lights on this list, it will support the plant through all of its growing stages, i.e., from veg to flowering stage.
However, it is advised that you use this LED only in growing tents, greenhouses, and with proper H2O systems.
All in all, The GL60LED 180W is one of the most affordable LED grow lights we’ve come across. Although there are better lights available on the market, this is an excellent option for new growers on a tight budget.
Overall, this LED light has great customer reviews, and many people prefer to more than one for their grow rooms in order to fulfill the lighting conditions.
12. MarsHydro 600W
The MarsHydro 600W is another affordable addition to our list of high-quality grow lights.
The manufacturers claim that not less than ten thousand grow rooms are currently powered by their 600 watts LED grow lights. That’s not a manageable number to achieve unless you are truly delivering a spectacular product to your customers.
The Mars 600 watt is another excellent LED grow light for growing plants, like marijuana, indoors. The grow light is ETL certified and comes with pluggable VDE and UL certification wires.
The Mars 600W only uses 265 watts of power. It’s an energy-efficient option that could lower your electricity costs by giving your plants more light with less power consumption. This LED can easily replace a 250-watt HOPS/HID/MH grow light.
The Mars 600W LED can easily cover an area of 2.5 x 2.0 ft, and it is best suited for a 39″ x 39″ x 70″ grow tent. Being a full-spectrum light, you won’t need any external source light for your plants.
The best part about all the MarsHydro LED models is that they are inspected for 45 hours before final packaging. This is done to reduce the number of defective lights.
13. MarsHydro Reflector 480W
Just like the 600W model, the MarsHydro Reflector 480W is an excellent LED grow light for the money. The manufacturers have done extensive testing and experimentation before developing their products.
The MarsHydro Reflector 480W features a very compact design. Just like other full-spectrum lights, the MarsHydro 480W can easily replace a 250W HPS/HID light. It comes with a different switch for veg and bloom to customize your light for each growth phase. You can use the light for the full development of your plant from start to finish.
It is hard to visualize such a compact LED covering 3.5 x 2.0 ft of coverage area, but it’s true. It only uses about 190 watts of actual power, and like the 600W model, it is ETL certified and includes VDE and UL certified power cords.
This is a reason why MarsHydro Reflector lights have such excellent customer feedback. They are high-quality lights for smaller grow rooms.
This LED comes with a 2-year warranty, you can expect to yield a maximum output of your marijuana plants using this grow light.
14. Galaxyhydro 300W LED – Bestselling Cheapest LED Grow Light
If you’ve been growing for a while, you’ve probably heard of the Galaxyhydro LEDs. It’s 300W LED model is extremely popular among at-home marijuana growers.
Not only is the LED highly affordable, but it also has great reviews from users that are highly satisfied by their purchase and recommend it to other growers.
It’s blue and red light settings contribute to growing your marijuana from a seedling to flower. The LED provides an adequate light intensity, which is sufficient to produce a great yield for your plant. The LED consumes only 135 watts of actual power, making it energy-efficient, just like the other LEDs on this list.
It is equipped with 100pcs of 3W Epileds LED chips which ensure high luminous efficiency and light penetration. The UV emitted out from the LED helps to kill bacteria and sterilizes the growth of the plant so that it can produce abundant healthy flowers. The IR function promotes the cell division, which allows the plant to grow both in the veg and the flowering phase.
The light is equipped with two cooling fans for easy dissipation of heat so that your grow room stays cool. It covers an area of 2 x 2 ft when suspended 25 inches making it an ideal fit for a small grow room. You could also use multiple lights if your grow room is more substantial.
Overall, Galaxyhydro is a professional LED grow light manufacturer which has got a great R&D team to do exclusive tests when developing the best LED grow lights in the industry. The company provides you with a 2-year warranty along with a 30 day money-back guarantee.
15. Higrow Optical Lens-Series 1000W- Best LED Grow Light Under $400
The last product on our list, the Higrow Optical Lens Series 1000W is an extremely reliable light that has a loyal follower base.
It’s known for its 90-degree optical lens, which ensures that the light is more concentrated on your marijuana. This helps to reduce light loss by up to 35%.
The LED has an improved high PAR/Lumen output that supports the maximum harvest of your marijuana. Being a full-spectrum light, it includes the UVB, UV and the IR rays that help the plants veg and flowering stages.
The LED consumes only 400 watts of power and is a perfect fit for a 4 x 3ft growing room when suspended at 24 inches. The maximum coverage area is 5 x 4ft, which can be achieved by adjusting the height of the LED along with the angle.
The LED is well-equipped with newly upgraded aluminum heat sinks and a 3x high-speed whisper-quiet fan.
Lastly, you can rely on your light lasting because it comes with a worry-free three-year warranty plus a 30-day money back guarantee.
There you have it. Our picks for the top-rated, highest-performing LED grow lights on the market.
LED Grow Lights Buyers Guide 2020
Now that you’re familiar with the top-rated LED grow lights on the market, let’s talk about how to choose the right LED grow light. To tackle this subject, we’ll need to briefly dive into the origin story of LED lights and what makes them such a popular option among marijuana growers.
History of LED grow lights
You can see from the image below how much we have evolved from the early 1800s. The lighting industry has come from simple candle lights and oil lamps to the modern-day LED lights we see now.
LEDs work on the primary principle of electroluminescence. The Monsanto Company was the first organization that produced visible LEDs for the mass market back in 1968.
Usage of LED Lights
LEDs are now being widely used in nearly all aspects of lighting equipment. This is mainly because they are brighter than conventional lamps and consume less electricity.
From lamps to decoration lights, traffic lights to headlights, LEDs are used across industries and devices as a bright and energy-efficient option to other lights. LEDs have a longer lifespan compared to CFL lights, and they emit less heat, which was a significant issue with conventional lights.
How do LED Lights Work?
LEDs are semiconductors which conduct electricity in a circuit. They have two junctions — P junction and N junction. The N junction is the negative side, and the P junction is the positive side. These silicon-based junctions play a significant role in conducting electricity. When electricity is passed, the electrons will move from the negative to the positive side producing light.
What is the Significance of Different Colors?
Most LED grow lights emit different colors, which excessively support the growth of indoor plants, like cannabis.
When white light passes through a prism, you see different colors on the other side of it. Similarly, we can modulate the intensity emitted by the LED lights by using different semiconductor elements within the light to create different colors.
Below is the detailed chart to show you how different colored LED lights are made using different semiconductor material.
The Benefits of LED Lights:
- They are very bright and are the best choice to mimic natural sunlights for your plants.
- LED lights cover a larger area compared to conventional HID lights.
- They are highly energy-efficient, meaning you will reduce your electricity bill in the long run.
- They have a long lifespan. You can expect an average LED light to stay strong for more than 50000 hours.
- They usually come with a manufacturer warranty, which is a major reason why people are shifting towards using them.
Now, let’s understand how to choose the best LED grow light for marijuana.
How to Choose the Best LED Grow Lights?
You don’t need to spend a lot of money on lights to grow good quality marijuana. It’s more about making the right choices and following the correct processes that will produce high-quality cannabis plants.
But even though you don’t need to spend a lot, you do need to choose the right lights that work will your grow room and set up.
Here are some essential points to keep in mind when choosing an LED grow light:
The growing area you need to cover:
This the most important thing to consider when selecting the grow light. Some grow lights are capable of covering through a large area while others are better suited for smaller grow spaces.
Your growing area will decide the number of LED grow lights you will need and which type of LED’s will provide you the best coverage. You can place the LED’s adjacent to each other to increase more coverage.
On average, every 1 square foot of grow space needs 32 watts of light.
|Number Of Plants||Square Feet||Recommended LED Wattage|
Plant Growth Phase:
It is always recommended that you use full-spectrum LED grow lights to support each phase of the marijuana growing process. This way, you can modulate the light according to the growing phase. Many LEDs come with a switch that lets you jump between settings for the different phases of growth.
Most lights will be able to help you grow your plant from the vegetative to the flowering stage without the addition of any external supporting lights.
However, there are lights which support only a specific growing phase of the plant. Decide if you want the convince of a single light that can switch between phases or the power of an individual light for each specific stage.
LED lens Angle:
You might wonder how the angle of light affects the growth of marijuana. It doesn’t make as much difference as you think. The primary way it impacts your plant is that it helps disperse light over a greater grow area.
An LED with the option to change angles will be able to cover more area compared to an LED with fewer angle options. This is why a lot of growers prefer LED lights with more adjustable angles so that their light can adapt as their grow room changes.
Like most things, the highest quality and most reliable grow lights come at a price. We’ve covered quite a few affordable full-spectrum LED lights in our review, and we stand by those options. However, the higher your budget, the more you will be able to get for your money.
When it comes to LED grow lights, full-spectrum lights will cost more than standard lights. In the end, better quality marijuana will sell for a better price. Having a higher quality light that produces a better plant will be worth it in the long run.
Considering a Warranty
The good thing is that most of the top LED grow lights covered in this post come with a minimum warranty of three years. This means, once you buy the LED, you can rest assured that you won’t have to replace it for at least two or three years depending on the brand.
On average, the lifespan of an LED is more than 50,000 hours, meaning you’ll get plenty of use out of your light regardless.
Benefits of Choosing a Full-Spectrum LED Grow Light
There are various types of lights that you could use for growing marijuana indoors. Some people choose standard lamps and HID/HPS lights. But if you’re serious about growing, LED lights are the most reliable and efficient choice.
Cannabis grows the best in natural sunlight. The plant needs a lot of light to grow in proper density. To produce the best yield, it is necessary that you provide your plant with a natural environment. Full-spectrum LED grow lights are changing the way people grow cannabis indoors. They mimic real sunlight and, have proven to produce better plants than HID/HPS and fluorescent lights.
To summarize the benefits of full-spectrum LED grow lights:
- Produce higher quality plants
- Higher grain quality
- Reduced electricity costs over time
- You will need fewer exhaust fans to circulate the temperature
- They last for 50,000+ hours; a much better life than the HID’s and normal bulbs
- Most LED brands offer a minimum of 3 years of warranty