Best Full Spectrum LED Grow Lights For Cannabis

Best Full Spectrum LED Grow Lights For Cannabis

The most important part of the marijuana growing equation is the grow light. Yes, you need a high quality grow light so that your plants can grow properly. Something that you may not know here is that for the different stages of the cannabis plant’s growth, it requires different types of light for the most efficient growth. The vegetative state and the flowering state require different light wavelengths.

Many people will purchase a light for each stage, which ends up being quite inefficient, it’s not cost effective, and switching out lights between stages is a pain in the neck too. However, this is where full spectrum grow lights come into play, ones that work for all stages of cannabis growth, so you only need the one light.

There are a lot of options out there, and finding the right one for you can be a challenge. So, today we are here to help you find the best full spectrum LED grow lights for cannabis.  This buyers guide covers absolutely everything you need to know along with our favorite 5 picks reviewed in lots of detail.


How To Choose Full Spectrum LED Grow Lights

cannabis led lighting

Before you go out and start buying grow lights all willy nilly, there are a few things you need to pay attention to.

Before we get into individual product reviews, let’s talk about the main purchasing considerations when deciding on a full spectrum LED grow light;

1. Total Output

Perhaps the most important consideration to keep in mind here is the total power output of the LED grow light in question.

Generally speaking, 4 square feet of cannabis plants require roughly 70 watts of total power output. It might not seem like a lot, but it is important to meet this level.

You do also want to pay attention to the total lumen output. Keep in mind that a single cannabis plant requires about 2500 lumens to grow properly.

2. Area Covered

Another important thing to keep in mind here is the total area which the grow light in question cover.

Keep in mind that a single pot plant needs around 2 x 2 feet of space to grow, so a single grow light should be able to cover at least that.

Of course, the type and size of light you get will be determined by the number of cannabis plants you are growing and how much area you need to cover.

3. Energy Consumption

Something else that is important to consider is how much energy the LED full spectrum grow lights in question use.

If you can find a 1200 watt grow light that uses 500 watts of energy, roughly, you can consider yourself lucky.

There are some 3000 watt options that use 800 watts of energy or less. The lower the energy consumption, the less you will pay on your electricity bill.

4. Lifespan

You do also want to pay attention to the total lifespan and overall durability of the full spectrum grow light in question.

Even the worst models should be able to last for at least 50,000 hours before burning out.

Any less than that, and the light was not worth the cost. Some grow lamps can last for over 100,000 hours, which is of course much better.

5. Price

Now, these things can get fairly expensive, so do consider the cost. Yes, you do want quality, but this does not mean that you have to spend an insane amount of cash.

6. Light Spectrum & Control

Another super important thing to think about here is what kind of light the LED grow lamp in question produces.

Of course, today we are talking about full spectrum grow lights, which means that they are designed for all stages of cannabis growth.

We will talk about this in a bit more detail below, but you do need a light that works for both the vegetative and flowering stages of cannabis growth, and ideally, you should be able to switch between the two easily, or run both sets at once if desired.

7. Ease of Installation

Simply put, any full spectrum LED grow light you get should allow for easy installation and they should all come with mounting hardware included.

The bigger the light is, the heavier it will be, and the harder to mount it will become.

8. Ability To Daisy Chain

One cool aspect of some full spectrum grow lights is that they can be daisy chained, which means hooking more than one up at a time.

Daisy chaining involves using only a single power outlet, and then connecting one grow light to the other, which comes in handy for larger grow operations.

9. Cooling System

The final thing to look for in a good LED full spectrum grow light is a decent cooling system.

Yes, these can get very hot, and it the light in question does not come with a cooling system, you will need to purchase it separately.

A good cooling system will usually consist of several high quality heat sinks combined with 2 or more high speed cooling fans.

The Light Spectrum & Cannabis Growth – Vegging vs Flowering

Something that you definitely need to know about here is that yes, different stages of cannabis growth require differing light wavelengths for the best results.

So, let’s quickly go over the different stages of growth and which light lengths they require. However, this can all get very complex and scientific, so we are going to dumb it down a bit and put it in the simplest terms possible.

We really don’t want to get into specific wavelengths and all that, but as long as you have the colors down, you are good to go.

  • Cannabis plants in their vegetative state require blue light to grow efficiently and produce lots of foliage, with healthy dose of white light on the side. This usually involves a lot more UV light, such as comes from the sun.
  • Cannabis plants in their flowering stage require lots of red light in order to flower, bloom, and produce plenty of THC and CBD, with a healthy dose of white light on the side. This type of light is infrared in nature, for the most part anyway.

Best Full Spectrum LED Grow Lights: Reviews

Here we have what we feel are currently some of the best options at the moment.

We have done some very in depth reviews of each grow light so you know exactly what you are getting into with each product.

1. BESTVA 2000W Full Spectrum Grow Lamp

Here we have what is one of the most efficient, cost effective, and most comprehensive full spectrum grow lights on the market today.

Simply put, it comes with everything you need to grow a marijuana plant from start to finish.

Output, Coverage, & Energy Consumption

In terms of output, the BESTVA is a 2000 watt model, but it does also come in a 3000 watt model, just in case you need even more light output.

In terms of lumen output, it features the highest lumen output per watt of any LED full spectrum grow light out there right now. It has more power than a 1400 watt HID grow light, which is very impressive indeed.

When it comes to the area covered, this particular grow light can cover an area of 7.8 x 7.5 feet, which is a whole lot indeed, especially considering that a single cannabis plant requires around 2 x 2 feet of space, so it is more than enough to support a few plants at once.

Moreover, this thing only draws 390 watts of power, so it’s actually quite energy efficient and cost effective in that sense as well.


Yes, the BESTVA grow light, so it does come with all necessary light wavelengths required for all stages of cannabis growth.

However, what’s really cool here is that you don’t have to run all wavelengths at once, thus saving you money on your power bill.

This LED grow lamp comes complete with a spectrum switch feature, a switch so you can choose whether to use the veg or flowering wavelengths, or if you need, you can actually run both at once.

Cooling System

Something else you might like about this LED grow lamp is that it comes with it’s own integrated cooling system. The cooling fans here are very efficient and dissipating and dispersing heat, so that the BESTVA Full Spectrum Grow Lamp does not overheat or cause your grow room to increase in temperature too much.

It’s something that eliminates the need for separate cooling, and it helps keep the temperature inside of the grow room in check too, not to mention that it increases the overall lifespan of this lamp as well.

In terms of heat dispersion, it’s probably one of best options in our opinion.


If you are worried about installing this thing, don’t be, because it comes with all necessary mounting hardware and does not require any extra ballast either.

It does weigh 10 pounds, so you might need some help from a friend to get it up, and make sure that wherever you are securing it to can handle 10 pounds.

Durability & Lifespan

The BESTVA Lamp is a very durable option, as it is made out of super high quality materials and has an average lifespan of 100,000 hours.

There’s also the fact that it comes with a full 3 year warranty, which is pretty impressive no doubt.


  • Spectrum switch.
  • Energy efficient.
  • Covers a large area.
  • Mounting hardware included.
  • 100,000 hours runtime.
  • High quality cooling system.


  • Might require 2 people to mount.
  • May lose peak output over time.

2. King Plus Full Spectrum Grow Light

Here we have another super powerful 3000 watt LED full spectrum grow light that is ideal for covering a fairly large area. We like this one a lot for various reasons, here is what you need to know;

Output, Coverage, & Energy Consumption

Yes, this is a 3000 watt grow light, so it is very powerful, and when it comes to total lumen output, its comparable to any HID grow light out there up to around 3000 watts.

With this particular option, you should be able to cover an area of around 8 x 8 feet, if not slightly more, all with the single lamp, which means that you can easily grow several plants from start to finish with this single light.

When it comes to lumen output, it’s up there with the best of them and puts out more than your plants will need. In terms of energy consumption, the King Plus Grow Light uses just over 600 watts, which is not bad when compared to other options out there, and how much light this thing puts out.

When it comes down to it, it’s a great option both in terms of output power, area coverage, and energy consumption.


Yes, the King Plus is a full spectrum grow light, so it does include all necessary light wavelengths to grow a cannabis plant from seedling to harvest.

It comes with dual chip 10w LEDs and comes with a fully comprehensive light spectrum output.

What’s also nice here is that you get veg and bloom switches, so you can turn the veg lights on when needed, then switch to the flowering lights once it is time to grow some real buds. It’s really a matter of convenience, plus it helps save a lot of electricity too.

Cooling System

This particular full spectrum grow light comes complete with a 3 high speed fan cooling system for awesome heat dispersion, so the lamp does not overheat, burn your plants, or cause a dramatic raise in the temperature of the grow room.

It also features upgraded aluminum heat sinks for even more effective heat dispersion. What’s cool is that although the cooling system here is high quality, it’s not very loud.


The King Plus is very easy to install, as it does not require any extra ballast or hardware. All mounting hardware comes included here, so that is taken care of.

With that being said, this thing does weigh nearly 20 pounds, so you will need some help mounting it, but other than that, there shouldn’t be any problems with it.

Durability & Lifespan

The King Plus is made out of some fairly durable materials, although it is a lamp, so dropping it is definitely not recommended.

The overall lifespan of this light is about 100,000 hours, although, depending on its use, it may be a bit shorter than that. However, the included 3 year warranty is definitely a nice feature.


  • Great for all stages of growth.
  • Has a spectrum switch.
  • Covers a significant area.
  • Fairly energy friendly.
  • No ballast requires & all mounting hardware included.
  • Very high output.
  • High level of durability.
  • Quiet and efficient cooling system.


  • Quite heavy – makes installation a bit difficult.
  • If 1 LED burns out, the whole row will no longer work.

3. Missyee Dual Full Spectrum Grow Lights

If you have plenty of plants and require a daisy chain light setup, which means having more than one light at a time, these Missyee Dual Full Spectrum Grow Lights make for a great option. Keep in mind that you do get 2 lights here.

Output, Coverage, & Energy Consumption

Alright, so here you get 2 separate full spectrum grow lights, each of which puts out 1200 watts of power, which is not bad at all. No, it’s not the most powerful option out there, but you do get 2 separate grow lights.

In terms of lumen output, the Missyee Dual light can put out over 2000 lumens per square meter at 6 inches, or just over 1300 lumens at 12 inches away from the light, which is pretty darn good all things considered.

For the pair, these lights can cover up to 8 x 4 feet for vegging, and up to 8 x 2 feet for flowering, which is not fantastic, but there are still worse options out there. Remember that you can daisy chain up to 4 of these lights, effectively increasing the area covered to 16 x 4 feet, which is pretty darn good.

What is also nice is that each of these lights consumes just over 250 watts of power, which should help save you some cash on your next electricity bill.


The Missyee Dual is a full spectrum grow light pair, and yes, they produce all necessary light wavelengths for all stages of cannabis growth, from start to finish.

Moreover, this LED grow light does come with a spectrum switch, so you can use the veg lights for the veg stage and the flowering lights for the flowering stage of growth. You can technically have both running at once to increase power output.

Cooling System

This particular set of grow lights comes with a powerful high speed 3 fan cooling system, as well as state of the art heat sinks too.

This keeps these lights from burning your plants and your grow room, from heating things up too much, and it helps increase their overall lifespan too. You definitely don’t need to purchase a separate cooling system here, which is always a bonus.


When it comes to installation, all mounting hardware is included, and of course, you can daisy chain these lights, which is magnificent. However, that being said, there are two lights included here, which means double the mounting time, not to mention that each light weighs over 15 pounds, so they are not lightweight.

You do need to ensure that wherever you are hanging them can handle multiple 15 pound lights.

Durability & Lifespan

The Missyee Dual Lights are made to be fairly durable, although we definitely would not drop them. However, that said, they won’t last you as long as some of the other options we have looked at so far.

Unlike the others, these lights will last for about 50,000 hours, maybe even a few thousand less, which is not great, but not horrible either.


  • Ability to daisy chain 4 lights for good coverage.
  • High lumen output per watt.
  • Fairly low power consumption.
  • Good cooling system.
  • Comes with mounting hardware.
  • Full spectrum + light switch.


  • Are covered by a single light is not great.
  • Lifespan is comparably less to others.

4. GreenGo Full Spectrum LED Grow Light

Here we have another 1200 watt full spectrum LED grow light, however here you only get a single one, as opposed to the above option where you got a pair of them. This light is about enough for a single plant.

Output, Coverage, & Energy Consumption

So, the GreenGo Full Spectrum LED Grow Light is a 1200 watt light, and it comes complete with 112 separate triple chip LED lights, and they have a fairly high lumen output.

Now, this light does not have as many bulbs or as high a lumen output as some of the other options we have looked at so far, so it’s not quite as powerful, but it does still produce some pretty decent yields overall.

In terms of area covered, for vegging, this thing can cover 3 x 3 feet, and for the flowering stage, it can cover 2.5 x 2.5 feet, which is not great, but also not bad. In other words, it works really well for a single plant, but no more than that.

With that being said, you can daisy chain up to 3 of these together at once, so you could use them for up to 3 plants with a single power source. This light uses under 250 watts of energy, making it one of the most energy efficient and cost effective options here today.


The GreenGo Full Spectrum LED Grow Light is a full spectrum light, and it comes complete with blue and white LED lights for vegging and red and white LED lights for flowering.

It might not totally cover all parts of the light spectrum, not like some of the other options we have looked at today, but the total cannabis yield from this light is still pretty decent.

Here, you can use the included switches to choose between the vegging mode, the flowering mode, or you can have both of them running at the same time too.

Cooling System

The GreenGo Full Spectrum LED Grow Light comes complete with a fairly high quality cooling system, one that features high grade heat sinks, combined with 2 high speed cooling fans.

This is more than enough to disperse heat and effectively control temperature. Simply put, this light is not about to overheat on you anytime soon.


What is really nice about this option is that each light weighs only 6 pounds, plus all mounting hardware is included. This means that a single person should be easily able to mount this light without assistance.

Durability & Lifespan

The GreenGo Grow Light is fairly durable, although maybe not quite as durable as some other options out there. It’s good enough for basic use no doubt.

In terms of the overall lifespan, you can expect between 40,000 and 55,000 hours of runtime out of it, which is not great, but also not bad either.


  • Cost and energy efficient.
  • Great for a single plant.
  • 3 lights can be daisy chained.
  • Full spectrum with spectrum switches.
  • High quality cooling system.
  • Easy for a single person to mount.


  • Not the best area coverage.
  • Comparably lower output than other options.
  • Does not totally cover the full light spectrum.

5. Advanced Platinum Series P300 Full Spectrum Grow Lamp

If you are looking for a full spectrum LED grow light that comes with everything you need to grow a cannabis plant from start to finish, this Advanced Platinum Series P300 Full Spectrum Grow Lamp is a good way to go.

Output, Coverage, & Energy Consumption

Ok, so in terms of power output, no, the Advanced Platinum Series P300 is not the most powerful option around. What is nice though is that this thing can effectively replace a 400 watt HPS grow light, and this thing puts out around 180 watts of real power.

Once again, this is the lowest power output out of any light we have looked at so far, but it does make up for it in a few ways, which we will discuss later on.

This particular full spectrum grow light puts out around 3 times more power and lumens that others of comparable size and wattage, which is not too shabby at all. It’s way more powerful than other LED grow lights of comparable power.

What is really nice about this option is that it is one of the most energy efficient grow lights on our list today, so it will help you save a bit of cash in the long run. In terms of area covered, it can cover about 4.5 x 3.8 feet, which is enough for 2 plants, roughly.


What is indeed very impressive about the Advanced Platinum Series P300 is that it produces some amazing vegetative growth and flowering yields.

This is because it effectively covers all necessary light wavelengths, 12 of them in fact, and this includes all necessary colors, plus infrared and UV light as well.

In terms of the spectrum, this light is the most complete and comprehensive one that we have covered so far. Yes, it does also come with veg and bloom switches, so you can choose to use the veg lights, the flowering lights, or both at the same time if required.

Cooling System

Now, the P300 does come with a decent cooling system, although maybe not the best one in the world. It does feature state of the art aluminum heat sinks, as well as 2 high speed cooling fans, but only 2 of them, not 3 like some others out there.

This light, although it won’t burn anything down, it may raise the temperature in the grow room a little bit.


This particular LED full spectrum grow lamp does come with the necessary mounting hardware required for installation, and no, mounting it is not rocket science.

However, do keep in mind that this single lamp does weigh nearly 15 pounds, so wherever you hand it needs to be fairly strong, plus you will probably need a helping hand when mounting it.

Durability & Lifespan

This grow lamp is made to be very durable, and in all reality, it might be one of the most durable options out there right now.

What’s quite impressive here is that this thing has a maximum lifespan of about 100,000 hour, which is great, although we would say more like 90,000 hours with continuous use, but either way, it’s still pretty impressive nonetheless.


  • Great lifespan.
  • Fully comprehensive spectrum coverage + spectrum switch.
  • Very energy efficient.
  • Extremely durable.
  • Covers a comparably large area.


  • Cooling system could be a bit better.
  • Comparably low power output.

6. VIPARSPECTRA Full Spectrum LED Grow Light

Here we have a large, fairly powerful, and super high quality full spectrum grow light that can be used to veg and flower a couple of cannabis plants at once.

Output, Coverage, & Energy Consumption

This is a 1200 watt grow light and it terms of total output is comparable to an 800 watt HPS grow light, which is not bad.

No, it’s not the most powerful option out there right now, but it is still fairly powerful nonetheless, more than enough to veg and flower a couple of plants at once. It does have a really high lumen output when compared to other full spectrum LED grow lights on the market.

When it comes to area covered, at 32 inches, it can effectively cover 4.5 x 4.5 feet of space for vegetation and 3.5 x 3.5 feet for flowering at 24 inches of distance. This is quite impressive, better than most others out there at this time.

What’s also impressive about the Viparspectra is that it uses just over 500 watts of power, which in terms of energy consumption is very good, making it quite cost effective in this way.


The Viparspectra is indeed a full spectrum grow light that comes with all necessary light wavelengths to support cannabis growth from the seedling stage all the way through to harvest.

In terms of the light spectrum covered, this is indeed one of the very best options out there right now, and it is know for producing some really amazing cannabis yields.

Cooling System

This particular option does come with a fairly high quality cooling system, which eliminates the need for extra cooling, and it helps keep the temperature in the grow room at a moderate level.

This thing features multiple high speed cooling fans combined with state of the art heat sinks, both of which work together to do an absolutely amazing job at regulating and dissipating the heat generated by this grow light.


Now, the Viparspectra Full Spectrum LED Grow Light does come with everything required for installation and mounting, which is a definite bonus.

However, what you do need to keep in mind here is that this thing weighs over 20 pounds, making it the heaviest option on our list today. You do need a strong anchor to keep it up, plus you will most likely require a helping hand to mount it.

Durability & Lifespan

In terms of durability, this full spectrum grow light is one of the more durable ones out there, and it’s thanks to its high quality fire resistant steel housing.

At the same time, this thing should last for well over 100,000 hours, which is longer than any other option we have looked at so far. The hassle free 3 year warranty included here is something else we should all be able to appreciate.


  • Very energy efficient.
  • Nice power output.
  • Covers a fairly large area.
  • High quality cooling system.
  • Mounting hardware included.
  • Full spectrum coverage + veg & bloom switch.
  • Great warranty.
  • High level of durability.
  • Very long lifespan.


  • Heavy and not easy to mount.
  • Cooling system is not exactly quiet.


How many watts per plant for LED grow lights?

This depends on the distance of the LED grow lights from the cannabis plants. At just 12 inches away, a cannabis plant requires roughly 250 watts, whereas at 36 inches away, a cannabis plant will require a light with over 1500 watts of output.

How many lumens of light output do marijuana plants require?

Generally speaking, an average cannabis plant requires a light with a total lumen output of about 2500 to 3000 lumens, although in some cases 2000 lumens will also do fine.

What color lights are required for which cannabis growth stages?

You need blue and white light, as well as lots of UV light, for the vegetative stage of cannabis growth, and you need lots of red and white light, and lots of infrared light for the flowering stage.

How far away do LED grow lights need to be from the plants?

This depends on the strength of the LED lights in question.

The stronger the light is, the farther away from the plants it needs to be. a 250 watt light will do fine just 12 inches away, a 900 watt light needs to be about 18 to 20 inches away from the plants, and anything over 1500 watts needs to be 24 inches away from the cannabis plants, at least.

What’s the difference between LED and HID grow lights?

LED grow lights tend to be more cost effective in the long run, more energy efficient, produce less heat, are better for beginners than HID grow lights, although HID light are usually best for large scale operations.

Do full spectrum LED grow lisghts require cooling systems?

Yes, absolutely they do. LED grow lights can get very hot, so if you get a lighting setup without cooling integrated into it, you will need to work hard to cool things off in the grow room.

It’s always best to get a full spectrum grow light with a high quality integrated cooling system.


There you are folks, everything you need to know about growing cannabis, the light spectrum, and what type of light you need for each cannabis growth stage.

Before you go out in search of a full spectrum LED grow light for you, make sure to pay attention to everything we have said here today, especially in the buyers guide and the FAQ sections.

Once you have all of the information you need, take a look at the various options we have reviewed here today, and then go from there.