Best Full-Spectrum LED Grow Lights
Have you ever wondered what it takes to grow succulent harvests from the comfort of your home? Below you’ll find our top five picks for the best full-spectrum LED grow lights on the market.
- Bestva – Best Full Spectrum LED Light
- Giixer – Best LED Grow Lights for Indoor Plants
- Sunraise – Best 1000-Watt Indoor Grow Lights
- Leoter – Best Grow Lights for Seedlings
- KingLED – Best Professional LED Grow Lights
Modern LEDs do a miraculous job of recreating sunlight to invoke photosynthesis. Check out our top picks, buyer’s guide, and answers to FAQs before selecting lights for your indoor grow room.
TOP Rated LED Grow Lights – Reviews
|Grow Light||Coverage||Input Voltage||Number of Lights||Lifespan||Full Spectrum|
|KingLED Reflector Series 3,000-Watt LED Grow Light||Veg:4’x3.5’, Bloom: 3‘x2.5’||AC 85V-265V||231||100,000 hours||Yes|
|BESTVA DC Series 3000-Watt LED Grow Light||Veg:4’x3.5’, Bloom:3‘x2.5’||AC 85V-265V||100||100,00 hours||Yes|
|Giixer 1000W LED Grow Light||Veg: 3×3′, Bloom 2.5’x2.5′||120W||218||20,000 hours||Yes|
|Sunraise 1,000-Watt LED Grow Light||2’x2′-3’x3′||165±3%W||96||50,000 hours||Yes|
Best Full Spectrum LED Light
Bestva’s DC Series 3,000-watt full-spectrum LED grow lights enable you to tailor your light settings to your target plant growth stage.
The onboard “Bloom” switch boasts carefully calibrated settings for seedlings and flowering stages. Meanwhile, the “Veg” switch is set for growing and fruiting. You can also turn on both switches at the same time to maximize your light’s power output. This is important because plants require different light spectrums at different growth stages.
While the light is advertised as a 3,000-watt unit, it only uses about 540 watts to produce the equivalent level of full-spectrum light. This amounts to an energy savings of nearly 80%. You can expect your electricity bill to be much lower than it would be compared to most other lamps in the same power range.
The Bestva utilizes dual-chip 10-watt LEDs. Customers will tell you that these are far brighter and more reliable than the single-chip alternatives.
The rectangular unit contains 231 individual lights. It measures 12.5-by-8.8-by-2.8 inches and weighs approximately 10 pounds. The light offers 4-by-3.5 feet of coverage in the “Veg” stage and 3-by-2.5 feet of coverage in the “Bloom” stage. Lights should be placed at a height of roughly 24 inches so that the rays can be evenly distributed across an 8-by-7.8-inch growing surface.
The blue and red lights are equally powerful. As such, the combination is a close comparison to natural sunlight.
Despite the light’s nominal power draw and heat production, you are guaranteed an impressive PAR.
Each lamp is equipped with a powerful cooling system. The units use 3-millimeter aluminum plate radiators for better heat dissipation. Meanwhile, holes in the glass and aluminum surfaces help excess heat escape.
Thanks to these design elements and built-in fans, the unit operates 50 to 60 degrees lower than most other LEDs. At least, that’s what the manufacturer purports.
You can trust your plants will not have to endure any unexpected temperature spikes during their growing. This unit rarely heats up above 100 degrees Fahrenheit.
Warranty and Customer Service
It’s also worth mentioning that the Bestva grow lights are backed by competitive customer service and warranty promise. Customers get 3-years of protection and a 90-day return window.
The company is accessible and helpful. You can even provide suggested lighting times for various growth stages on their sales page. Those that have initiated returns or repairs have not experienced any pushback from the manufacturer.
What Customers are Saying
For the most part, customers seem pleased with Bestva. While a few people played witness to quality control issues, all were able to reach timely and appreciate resolutions with the manufacturer.
Users say that their Bestva lights helped speed up their plants’ flowering times while improving overall harvests. While the 3,000 Bestva isn’t the cheapest option offered by this company, it’s one of their most promising. A single Bestva lamp will provide enough light to propagate an entire 8-by-8 grow house worth of plants.
The Bestva grow lamp comes with a full lineup of accessories. This includes a ratchet, stainless steel hooks, protective sunglasses, and a power cord.
Keep in mind that the manufacturer does not recommend this light for daisy chains. The energy overlap is both hazardous and wasteful with this particular model.
LEDs are known to produce slow growth. Nevertheless, you’re sure to produce strong, productive plants with this powerful LED grow light on your side. It provides adequate coverage during all stages of the plant life cycle.
Don’t let the 3,000-watt power rating scare you away. It only uses 615 watts to generate this level of light.
- 10-Watt LED light is Bestva’s brightest and most efficient technology
- Impressive PAR output per watt
- Veg and Bloom switches target specific growth cycles
- 3-millimeter thick aluminum plate radiator helps keep the rest of the unit cool
- Three built-in fans for better cooling
- Strategically placed holes also help dissipate heat (runs 50 to 60 degrees cooler than most other LED grow lights)
- Uses just 615 watts to produce 3,000 watts of light
- Covered by a 3-year warranty and 90-day return period
- Light value decreases by 30% after 3 years
- One of the pricier options on the market
- Fans can be noisy
Best LED Grow Lights for Indoor Plants
The 1,000-watt Giixer grow light is just what you need to kickstart your indoor plant game. The full-spectrum unit’s 100 lights run off dual 10-watt chips. This means that you can easily switch from blooming to vegetative stages with the flip of a switch. You can even use both switches at the same time to maximize your light output.
The unit boasts three modes, including ones for germination, fruiting, and flowering.
The Giixer produces 1,000 watts with just a 110-watt consumption. This means you can feel good about your power consumption without having to cut back on your production efforts.
Thanks to the 10-watt dual chips, the light is bright and efficient. Users get a full spectrum, including blue, red, yellow, cool white, and warm white light.
The Giixer’s full-spectrum light is similar to that of the sun. This includes red, blue, orange, cool white, and warm white color combinations.
There are 218 individual lights built into the unit. These offer 3-by-3-foot coverage at 16 inches in height and a 2.5-by-2.5-foot coverage at 12 inches in height.
The Giixer unit produces a decent amount of light despite it being an LED rectangle. As such, some growers recommend that you position your lights a few inches higher than recommended.
Two onboard fans prevent dangerous heat sinks. Most customers say they are comfortable running the unit 24/7.
We love that this kit comes with all the necessary starter accessories, including a hygrometer/thermometer, tension pulley, four-hook hanger, and power cord.
Warranty and Customer Service
The Giixer is rated for approximately 50,000 hours of use. Plus, it’s equipped with protective diodes. These elements boast 12-mil gold wire and a 45-mil big-size chip. If one chip ceases, no others will be impacted.
As per the manufacturer’s guarantees, the grow light is covered by a 24-month warranty and a 30-day money-back promise.
What Customers are Saying
Customers seem incredibly pleased with this LED grow light. Many say that they have kept the unit running for several months and have yet to experience any reportable issues.
The unit is priced reasonably compared to LEDs with similar statistics. Plus, it’s got a promising lifespan and plenty of efficiencies.
- Dual switch and chip for targeted growth settings
- Produces 1,00 watts for every 110 watts
- Estimated lifespan of 50,000 hours
- Covered by a 1-year warranty and a 30-day money-back guarantee
- 220 individual lights with protective diodes
- Includes all the necessary accessories for installation
- Produces a full spectrum of sunlight-mimicking light
- Vent fans can be noisy at times
Best 1000 Watt Indoor Grow Lights
Sunraise’s full-spectrum grow lights are our favorite within the 1,000-watt range. This unit utilizes optical lens technology to generate higher PAR values than comparable reflector lenses. Like many of the previously mentioned models, this unit also boasts two switches. By alternating between the “Veg” and “Bloom” settings, you can easily maximize your blooms and harvest.
The unit utilizes approximately 140 watts to produce 1,000 watts of light. The triple chips produce approximately two times the amount of light as double chips. There are a total of 96 Zener diodes in all.
The Sungraise’s optical lens technology increases its light production by an estimated 30%. This means you can produce more electricity with less light.
Each light unit provides 2-by-2 inches of coverage at 12 inches and 3-by-3 inches of coverage at 16 inches. You get a decent amount of light for every 165 watts.
At 12 inches, the Sunraise has a PAR value of 1995. At 18 inches, it decreases to 697.7. As you probably already guessed, these PAR ratings are higher than that of comparable reflector series grow lights.
The Sunraise’s onboard fans provide sufficient heat dissipation and cooling. Keep in mind that the unit is not waterproof and, therefore, probably not a good match for hydroponic setups.
The included power cord is suitable for daisy chains. This means you can easily install an entire grow room of these grow lights.
You also get a stainless steel hanger hook and a helpful welcome guide. This makes installation all the easier.
Most users had success using the 1,000-watt grow light in 4-by-4-foot grow tents. The lamp provides adequate light without introducing too much heat.
Warranty and Customer Service
The Sunraise grow light is covered by a 36-month worry-free warranty. Plus, users can access live customer service agents.
What Customers are Saying
Customers are quick to note that all 96 LED light bulbs boast designated Zener diodes. This means that if one goes bad, the others will still work.
Consumers also mentioned that the Sunraise is incredibly affordable and energy-efficient. It’s an excellent pick for anyone who’s just getting started or shopping on a budget.
- Energy efficient using just 140 watts to produce 1,00 watts of light
- Dual fans offers sufficient cooling
- Each individual light has its own diode for added longevity
- Estimated lifespan of 50,000 houts
- 15-watt triple chips produce tons of light
- Comes with all the required accessories for a quick and easy installation
- Light is directed straight down
- Can only cover one to three plants at a time
Best Grow Lights for Seedlings
The Leoter Gooseneck Grow Lights are perfect for small houseplants and seedlings. These flexible full-spectrum lights have been upgraded to offer users greater efficiency. They boast 10 dimmable lighting modes and three switch modes, both of which are targeted to improve various plant growth stages along the plant life cycle.
The unit has a built-in memory timer with an automatic on/off switch. The timer boasts three-, nine-, and 12-hour modes. The light automatically recalls its previous timer mode. Therefore, you do not need to turn it off or on unless you’re looking to change the current settings.
The Leoter produces a full spectrum of colored light. Specs range from 280 to 8000 nanometers. Users get a mix of red, blue, warm white, cool white, and full-spectrum light depending on their settings.
There are a total of 39 red LEDs and 12 blue LEDs built into this octopus-like lamp’s arms. For those of you that are savvy at math, that’s a total of 60 full-spectrum LEDs.
It’s worth noting that this unit features an aviation-grade heat sink and temperature control unit. The design enables the light to reabsorb the heat it generates to keep it out of your closed environment grow room.
The set includes a four-head flexible gooseneck clamp light that can be attached to any USB or AC power plug. The adapter and clip are included with your purchase. The clip can be positioned on any surface that is up to 3 inches thick. Thanks to added rubber reinforcements, you do not need to worry about the clip slipping.
Warranty and Customer Service
This product is not covered by any known warranty. However, the manufacturer does offer 24/7 online customer service. The only catch is that you have to reach out to them via Amazon questions.
What Customers are Saying
Customers say that this little grow light is perfect for small-scale indoor growing situations. It stays in place and doesn’t produce a lot of heat. Plus, you’ll barely notice a difference in your electricity bill.
- Users can easily switch between 10 levels of dimmable light or three different light spectrums depending on their plants’ growth stage
- The four lights are very long and easy to manipulate.
- Aviation-grade heat sink prevents the unit from adding heat to a closed environment
- Incredibly bright energy efficient
- Only stands when clipped
- May not be strong enough for plants that require intense sunlight
Best Professional LED Grow Lights
If you’re looking for a professional-grade grow light, be sure to check out KingLED’s Reflector Series 3,000-watt unit. This hefty unit offers 380 to 780 nanometers. Of light Plus, some IR light.
The large LED will carry your plants from seed to harvest. The onboard “Veg/Bloom” switch enables you to choose your light settings according to your plants’ current growth stage. You can trust this overhead lamp to carry your clones or seedlings through the entire plant life cycle without issue.
The KingLED is equipped with an energy-saving Samsung chip. This technology enables it to use just 600 watts to produce 3,000 watts of light energy.
At the end of the day, you should notice significant savings on your electricity bill if you’re switching over from something like a high-density or fluorescent overhead.
The KingLED covers 3.5-by-3.5-feet when the light is set at a height of 24 inches. The unit measures 13.2-by-11.6-by.2.4-inches. Mqs coverage tops out at 7.8-by-8 inches at a height of 22 inches.
Keep in mind that this is not a reflector series unit. As such, the focus angle only ranges between 90 and 120 degrees. Each light is equipped with an optical lens cover. This helps to spread the light across a wide growing surface.
The lamp offers a 12-band full-spectrum effect with minimal IR light. Its PAR is 1,582 at 24 inches. The blue spectrum is more dynamic than the red spectrum.
The KingLED boasts multiple heat sinks. Since the glass is not completely sealed, heat dissipates easily. Adding to this grow light’s impressive cooling capabilities are its upgraded aluminum radiators and four high-speed fans. As a bonus, the cooling system operates silently.
Warranty and Customer Service
The LED is also backed by an impressive three-year manufacturer’s warranty. Not to mention, customers are privy to a 90-day no-questions-asked return policy and round-the-clock customer service.
What Customers are Saying
Customers agree that the KingLED is a high-quality reflector. This unit focuses light right where you aim it. The included humidity and temperature control remote is a nice touch that we’ve yet to see elsewhere. We love that this unit is suitable for daisy chains.
This brand is well-known and respected throughout the indoor growing community. If you’re looking for a light with a solid build and proven results, then look no further than the KingLED.
- Veg and Bloom switches provides growth stage-specific light
- Provides full-spectrum lighting that ranges from 380 to 780 nanometers
- Cools efficiently thanks to multiple heat sinks
- Boasts an energy-saving COB chip (utilities just 600 watts)
- 3-year warranty and 90-day free return period
- Boasts a lifespan of 100,000 hours
- Not ideal for small-scale grow operations
- Limited lifespan
Buyer’s Guide – How to Choose the Best Full-Spectrum Grow Lights
Purchasing grow lights is not always a walk in the park. If you want more information on growth light specifications, you’ve come to the right place. The following buying guide covers everything you need to know before you set out to find grow lights for your operation.
Before you can begin shopping, you will need to know your target growth light intensity.
Consider the Light’s PPF Rating
The PPF, or photosynthetic photon flux, is the number of light photons that are produced by a light fixture each second. PPF is measured using a PAR, or photosynthetic active radiation, meter. The measurement is then expressed in umols per square meter per second. An ideal PPF rating ranges from 400 to 700 nanometers.
Check the PAR Findings
PAR, or photosynthetic active radiation, is the wavelength of light within the visible range. This figure starts at 400 nanometers and ends at 700 nanometers. Your target PAR depends on the type of plants you are growing as well as the distance of your lights from your plants.
Common vegetables, including tomatoes and lettuce, require 400 to 500 umols/m2/sec. Meanwhile, the recommended PAR level for marijuana is 300 to 400 umols/m2/sec.
Few plants require more than 1,000 µmols/m2/sec of PAR. In most cases, a light that offers 500 to 1,000 umols should be sufficient. You can usually get away with lower PAR ranges during early growth stages. Meanwhile, more powerful PAR ranges are needed during flower and fruiting.
Analyze the PPFD
PPFD, or photosynthetic photon flux, is a unit of measurement used to describe light intensity in a specific area. Or, in other words, it is the amount of light that falls on the PAR region of your growing area every second. As we already know, plants need 500 to 1,000 umols of PAR per square foot per second.
PPFD is sometimes confused with PPF. However, PPFD is the amount of light that actually impacts plants. Whereas, PPF is the amount of light produced by a fixture.
Light spectrum is yet another key factor concept that you need to understand before you select the right grow light. A qualifying light needs to offer a full spectrum of light colors to promote photosynthesis (chlorophyll absorption). Most growing experts recommend a full-spectrum fixture that offers a ratio of blue and red light as well as some UB and far-right radiation (photomorphogenesis. This spectrum usually covers the full photosynthetically active radiation range (PAR) or 400 to 700 nanometers.
Virtually every stage of the plant life cycle is dependent on targeted light wavelengths. This includes fruiting potential, flowering yield, vegetation growth, root growth, harvest characteristics, and harvest yield.
Blue light, which also falls within the 100 to 400-nanometer range, can determine the vegetation development, root development, and flower development of plants grown indoors. Meanwhile, red light (600 to 700 nanometers) improves plants’ photosynthesis and biomass. The UV wavelength, which ranges from 100 to 400 nanometers, is responsible for flavor and photosynthesis.
Most plants come with a recommended blue to red ratio. For example, lettuce fairs best with a 35:65 blue to red ratio. Meanwhile, tomatoes turn out best when they are exposed to a 5:1 ratio of red and blue.
Some growers think of light spectrum ratios as an element of plant design. When you understand the impact of light spectrum ratios on your plants, you can easily make changes to determine the outcome of your harvests.
One of a grow light’s most important performance specs happens to be power consumption. This is the amount of wattage that your fixture draws from the outlet. The diodes that are built into LED lights are capable of producing intense light with small amounts of electricity.
Of course, wattage is also used to measure the amount of power that a fixture produces. Oftentimes, a manufacturer’s reported light output is higher than its reported wattage draw. When it comes to LEDs, there is often an exaggerated difference between these numbers. For example, the KingLED Reflector Series LED Grow Light mentioned above is described as having a 3,000-watt output and a 615-watt draw.
While you might be eager to save a buck on your electricity bill, LED lights with low electricity consumption are not always as promising as they appear. Oftentimes the lower power equates to lower production. If your fixture isn’t capable of producing enough PPFD, then it’s not going to help grow plants efficiently.
Most growers like to have a good idea of how many watts of electricity they’re using per square foot of grow space. This helps them to calculate their overall electricity expenditure. A draw of 20 to 50 watts per square foot is standard. You can use this calculator to determine how many watts of power your lights will use per square foot.
Understand Driver/Chip Compatibility
LED grow lights consist of corresponding chips and light-emitting diodes (LEDs). The chips transmit messages, such as light settings and timer settings. When these elements synchronously, growers can alter their lights’ PAR spectrum to better suit each plant growth stage.
Another essential consideration is growing space coverage. You need to be able to calculate the amount of growing space that your fixture can support. This number varies from grower to grower. After all, some people are managing large warehouses, while others boast 4-by-4 grow tents.
Generally speaking, lights with higher wattages are capable of covering larger areas. You will need to consider a light’s wattage, coverage area, and distance from plants before you can determine how many lights you need for your growing space.
Take into account that you may need to raise or lower your lights during different growing spaces. Raising and lowering plants alters a light’s overall PAR per square foot.
While LED grows lights do not get nearly as hot as traditional light fixtures, they still produce excess heat. Most lights have a combination of onboard heat sinks, radiators, and fans that help them to maintain a reasonable temperature.
Without a reliable grow system, you risk exposing your plants to excess heat and dryness. The heat that is produced by LEDs has nowhere to go inside a grow room or tent. As such, it is automatically absorbed by the plants and other objects in a growing area. Grow rooms should be well ventilated. The temperature inside the room should fall somewhere between 70 and 85 degrees Fahrenheit when the lights are on.
You can calculate a grow light’s estimated heat production by multiplying the number of watts used by 3.41. This gives you the fixture’s heat production in BTUs (British thermal units.) You can also check out this online calculator to determine the total BTUs of cooling needed for an LED light.
Lights with built-in or remote controls give you the freedom of programming. You may be able to set a timer, adjust the red, blue ratio of your light, or alter a light’s intensity to better suit your growing needs at any given time.
If you’re setting up a grow room for the first time, you’re going to need a good amount of accessories to complete your installation. Consider it a bonus if a manufacturer includes ratchets, hooks, and/or other hardware with their grow lights.
Most LEDs have promising lifespans, with many ranging between 20,000 and 100,000 hours of estimated runtime. While most LEDs live up to their promises, we still like to see companies stand behind their claims. Three-year warranties are commonplace for LED grow lights. A lengthy protection plan guarantees that you are covered even in the rare chance something goes from with your fixture.
The cost of LED lights is yet another essential consideration. Most fixtures average in the hundreds, but professional models can cost much as $2,000 per unit. When you purchase an LED light, you’re making an upfront investment. You’ll reap the benefits of your investment so long as the fixture’s lifespan and light intensity live up to the manufacturer’s promise. Hopefully, you’ll opt for a model that also boasts a lengthy and worry-free warranty.
If you’re shopping with a limited budget, you’ll want to pay careful attention to the light intensity, spectrum, and coverage offered by your chosen light. The right light should present energy savings alongside healthy plant growth.
We hope you enjoyed our rundown of the best indoor grow lights. You can use the guide above to help you hone in on the ideal grow lights or select from one of our top five picks.
The BESTVA DC Series 3,000-Watt LED Grow Light was easy to name as our top pick. Not only is this unit incredibly energy efficient, but it also has a predicted lifespan of 100,000 hours. The onboard “Veg/Bloom” enables you to support your plants from propagation to harvest. Of course, the KingLED Reflector Series 3,000-Watt LED Grow Light is an excellent upgrade. This powerful full-spectrum LED grow light offers bright, efficient light. Most users experienced obvious improvements soon after they switched over to the KingLED.
Thanks for joining us for our roundup of the top full-spectrum LED grow lights. If you have any remaining comments or questions, feel free to drop them in the section below.
- What are the advantages of LED grow lights over HIDs?
- How far should grow lights be from plants?
- How long should grow lights be on for?
- How many watts per square foot for led grow lights?
- How to hang led grow lights?
- How to make your own led grow lights?
- How to choose led grow lights?
LED grow lights are a great way to improve your crop yields because they emit light in the wavelengths that plants require for photosynthesis. The best LED grow lights have warm-white and cool-white LEDs, which combined give you the ability to control the color temperature of your grow room. In this article, we will take you through questions about LED Grow Lights and provide reviews from other growers who use them as well!
What are the advantages of LED grow lights over HIDs?
LED grow lights are perfect for those who want to reduce their electricity costs, never have to worry about replacing the bulbs in an HID fixture, and can provide high-intensity light at low watts. LED grow lights appear cool because they use LEDs that emit blue or ultraviolet wavelengths of light rather than an incandescent bulb which emits yellow-red wavelengths.
The best advantage is cost savings! A standard 1000W metal halide lamp will cost around $250-$300 each time it needs replaced compared with just one more expensive but much lower-priced LED replacement bulb (around $30). This means you would need two fixtures if you were still using MH lamps instead of just one for your LED lighting system!
How far should grow lights be from plants?
There are a lot of factors that go into how far apart you should place your LED grow lights from the plants. The size and weight of your plant, the height it will be placed at, and whether or not you want to accommodate for air circulation all factor in. In general, many growers put their larger around two feet away on average when they’re using smaller lights containers like square gallon pots!
If you do plan on placing your plants closer than what’s recommended by the manufacturer then be sure to shield them with reflective materials so as to best to avoid any damage from light exposure!
The more common distance is between 18″ – 24″. This allows enough space for some airflow while still reducing energy because LEDs use very little wattage per square foot.
How long should grow lights be on for?
This really depends on the type of plant, but in general, we recommend 12 hours. This gives your plants enough time to absorb all the light and complete their photosynthesis cycle!
The two main factors that determine how long a grow light should stay are: How big is my space? What are you growing inside it? For small spaces we recommend turning them off at night or for dark periods like winter— this will save energy too! Larger areas can go longer without any problem if they’re using LED lights because LEDs use much less wattages per square foot as opposed to HID lighting systems which need lots of watts.
How many watts per square foot for led grow lights?
LED growers to report that they have been able to get similar yields on just 18″ of their plants by increasing the intensity of their fixtures which would work out to be roughly 66 watts per square foot if you’re bringing them closer together or even down to 36-watt hours per sq ft for larger spaces!
The watts per square foot for LED grow lights are much lower than HID lighting systems. For example, a 1000W MH light can use up to 200-400 Watts and produce around 60,000 lumens while an LED fixture with the same size might produce anywhere from 40-200 Lumens but only uses about 20 Watts! That’s as much as 80x less energy used when using LEDs vs. MHs in your grow space.
How to hang led grow lights?
There are many ways to hang LED grow lights, but some growers just use a simple chain. You can also purchase hooks and ceiling fixtures from stores like Lowes or Home Depot as well for the same purpose!
All you need is something that will be able to support the weight of your light fixture so it doesn’t fall down while being easy enough to access when needed for maintenance purposes too.
Keep in mind that if you’re using larger lamps then they might require more than one hook or length of chain depending on their size. This has been tested by other growers who have had success with this method though!
You may want to try hanging them at different levels throughout the space because LEDs produce higher intensity light which means there’s no need to place them as close together!
How to make your own led grow lights?
The most popular way to make homemade LEDs is with diodes (which are basically just little circuit boards) and some wires connecting them together.
How to choose led grow lights?
The best way to choose LED grows lights is by looking at the lumen output. The higher this number, the more intense light (lumens) it will produce! For example, if you’re using a 600-watt HID system then try and find an LED that has around 40 watts or less per square foot for optimal yield but with similar intensity.