The Best LED Grow Lights?

These may be the best LED grow lights currently available

The award-winning Kind LED K5 Series

the best LED grow lights for indoor growingThese LED grow lights were brought to our attention recently due to their winning the High Times STASH “Gear of the Year” awards two years running (2015 and 2016).

Not only that, but the previous set of Kind LED lights (the K3 series), won the award the year before (2014). So you could say that these LED grow lights have a good track record!

According to Chris Mund on,

One may ask, what is the High Times STASH award and how does a company earn such an honor? STASH stands for Significant Technological Achievements in Secretive Horticulture. The award celebrates the advances made in the indoor cultivation community and honors outstanding performance for products throughout the industry. These include products in lighting, grow media, nutrients, and any accessory that will increase overall performance in cannabis cultivation. Kind LED grow lights has, yet again, risen above the competition (the company’s K3 Series light won Gear of the Year 2014) based on the innovative design, customer satisfaction and hard data supporting the performance of the lights.

What’s all the fuss about then?


Advantages of LED grow lights in general

More and more growers are using LED lights to replace HPS, and other, lighting. This is for several very good reasons:

  • LEDs use far less electricity to run than HPS (or any other) lights
  • LEDs are more efficient – per wattage of electricity, LED lights give more light per watt so you get a higher yield per watt
  • you don’t have to change the bulbs of LED lights – or very rarely…!
  • LED lights are cooler-running so generate less heat (so you’ve less need for fans etc.)

So what’s so special about Kind LED lights then, over other LED grow lighting?

Kind LED grow lights – pros

Well, Kind LED grow lights have a few special features.

Quality of light – “perfect 12 band colour spectrum”

The main advantage of Kind LED grow lights is that the quality of light is better than most other grow lights. The K5 series is a mixture of 3 and 5-watt diodes. And they have a “perfect 12-band spectrum” – i.e., 12 colours of LEDs in the light.

The spectrum is adjustable so you can change it to adapt to the different light stages of your plants to really optimise the growth rates and yield of your plants. For example, by dimming the red parts of the spectrum during the vegetative stage then turning the reds up to bring them to harvest. You can actually simulate the conditions of full sunlight autumn harvest.

Focused diodes

Each diode also has a “secondary optical lens”. This focuses the light from each diode so that it shines directly downward, rather than the beam spilling out to the sides. As such, the light penetrates deep into the plant canopy, intensifying the photosynthetically active radiation (PAR – the wavelengths of light your plants use for photosynthesis). This in turn facilitates rooting and maximises your yield.


By the way, this is all explained further – and better! – in this information video:

Energy efficiency

Kind LED grow lights run at 60% of the wattage of HPS lights. For example, the Kind LED XL1000 has the same footprint and yield as a 1000W HPS light. So it can be used as a direct replacement, but requiring far less electricity to run.

Also, Kind LEDs last for 50,000 hours. This is the equivalent of having them on for 12 hours a day, every day, for ten years. So not (m)any bulb changes!


Kind LED lights are very cool-running, even for LEDs. The makers state categorically that you will not need ventilation or fans with Kind LED lighting. Obviously, this will also save you a lot of installation costs and of course the ongoing electrical expense of running the fans, etc.

Built-in timers

Another feature of the Kind LED K5 series is built-in timers, so that you can program the lights to turn themselves on and off. Other LED lights sometimes also have this feature.

However, the K5 series allows you particularly detailed control over the timing. You can program the lights to come on and off 8 times within a 24 hour period. You can also control the light spectrum. So you can even program in a ‘sunrise’ and ‘sunset’ with the infra-red part of the spectrum to wake the plant up and put to ‘to sleep’ naturalistically.


Finally, the K5 series of Kind LED grow lights are possibly the only ones on the market right now that have a remote-control. This might sound like an unnecessary gadget, but given that many folks’ grow spaces are tucked away in inconvenient corners and attics, being able to adjust the lights by remote-control is a handy feature! It also means you’re not having to clamber around your plants and touch them too much.

The remote-control gives you very fine-grained control over the brightness of the different lights, including full control over which parts of the colour spectrum you’re wanting to dim or ramp up (there’s a cool demo of this in the video above too).

You can do everything manually too, so no worries if you temporarily misplace your remote.


Kind LED grow lights – cons

They sounds really good, right? But there must be a downside. Well, pretty much the only con is the upfront cost of the Kind LED grow lights.

The K5 series is the top of the range. It has two sizes of light, the XL750 and the XL1000, suited for smaller and larger grow spaces respectively.

The XL750 will set you back around $1400 – about £1140 / €1320. The XL1000 costs about $1900 – about £1545 / €1790.

The K3 series lights are about half the price of this, ranging from $660 – $990 – about £540 / €620 – £800 / €930.


NOTE: At the time of writing (Spring, 2017) has a sale with about 10% percent off all Kind LED grow lights.

Click here to browse the sale: Supercloset Kind LED grow light SALE


The K3 series have 3-watt diodes whereas the K5 series is 3- and 5-watt diodes. The K3 lights also don’t have the remote-control feature. However, they have everything else – the full 12-bandwidth light spectrum, the secondary optical lens, etc.

These 3 Watt Kind LED lights will match or outperform any other similar 3 watt setup that is seen often throughout the web, regardless of price or claims, GUARANTEED!

And they did win the “Gear of the Year” award in 2014.

Greater upfront costs versus cheaper running costs

So Kind LED lights will cost you a bit to buy. However, given that they use only 60% of the electricity of HPS lights, you don’t need to buy new bulbs, and you don’t need ventilation ducts and fans, then you will be saving $100s/£100s in running costs. Not to mention the fact that you’ll be getting higher yields from your existing grow space. So if you can make the initial outlay, and you’re planning on growing for the long-term, you’ll be laughing as time goes on.

Manufacturer’s guarantee and warranty

Keep in mind that, whichever Kind LED lighting you get, they’re all covered by a 3 year warranty. This means that if you have ANY problems with the lights, you’ll get them fixed for free.

You can also just try them out for three months without any financial risk since there’s a 90-day money-back guarantee. Basically, if you try them and just don’t like them, you can get your money back within 90 days of purchase.

All in all, this makes Kind LED grow lights very appealing.

Click here for more information and/or to order: – Kind LED grow lights is US-based with a UK distribution centre. So whether you’re in North America or Europe, your shipping costs will be reasonable!