Led Grow Light, KOSCHEAL KT 600W Led Grow Light Upgraded

I have gotten 3 over the past few years and each one has been great, the older one is about 4 yeasr old with alot of use and still not one fault with it. if your looking for big fruits or nice big colurful flower i would say to get 2, witch still keeps your price under some of the big brands out there and does the job. only reason i got a 3rd is it was on sale and i could not leave it there lol. No harm in having a spare. Hope this helps

I have previously used a similar unit, calling itself 600W. (The wattage rating is a bit misleading, but that seems to be standard with these things.) This new 2000W unit is indeed considerably brighter, and it runs a bit warmer. The difference was noticeable right away, with more and faster growth. Very happy so far (5 days after delivery).

Extremely bright, I’ve been using this light to get my rare chilli plants and bonsai through the winter, I’ve noticed a definite improvement in my plants since using this light in my window, I had a few comments from neighbour’s with my previous blurple setup, with this light being a white light it creates less interest from people assuming I’m stupid enough to be growing cannabis on my window sill, the only downside is the fans are quite loud, the fans will keep the unit working longer I’m sure

I have used this on a timer and this morning the light did not turn on says its got waranty but no idea where to begin or if its even worth i

I’m surprised at the quality. I was expecting something cheaply made but I’m impressed!

It’s brighter than I expected and has decent light penetration. The fans are about as loud as a desktop computer and seem to dissipate the heat well. The 600w is small and compact and is perfect for a closet grow. I wouldn’t recommend for more than 2 plants at a time due to how small the light is.

As for the end results, we’ll have to see. But so far so good.

First off, lets bust some myths being touted here…

1. It is a 2000w EQUIVALENT lamp – meaning by using its 200 odd watts, it is producing the same amount of light as standard bulb drawing 2000 watts (which for those lamps means that 1800 watts of heat is being pumped out – so its more of a heater than a light, whereas this is a light). When an HPS light goes out, the temperature in a grow tent will plummet, due to the loss of all that heat. An HPS by the way is more efficient than a standard bulb but only by a few percentage points, so still the majortity of your electricity is being radiated as heat not light.

2. As far as your plant is concerned it is FULL spectrum – it provides all the useable light the plant needs, the stuff a plant cant use in ‘daylight’ goes to waste – this type of light is not wasteful in that respect.

3. The important thing about light intensity is lumens – this is not quite the 24000 of full sunlight, but its a lot better than most bulbs and importantly its all in the spectrum areas plants require for photosynthesis, so no wastage. So no one here is lying about ratings or wattage or anything to do with the equivalency of the light – it is just that EQUIVALENT.

So I am using this to light an area 120 x 60 and it is providing ‘daylight’ light levels equivalent to the midsummer in the tropics over that area. My seedlings react by growing exactly as they would in the wild, sturdily and quickly. I have chillis up in 4 days, cactus in 3 and some succulents inside 36 hours – none are showing stress, none are getting ‘leggy’. No sure if I will use it to grow a crop to maturity, though I feel sure it would easily do this, but for me this is more to do with available space and the fact that I will grow stuff on in a conventional greenhouse afterwards. This allows me to start early for long season crops in a dark garage with little more than this light, a grow tent and some bottom heat.

So for its cost (about the same as an HPS with a ballast and gear) it is using 20% of the electricty – requires none of the ventilation (which just blows out the heat into a cold void, rather than being able to seal it in with the plants and lights up and extinguishes instantly on my timer. All in all excellent value for the price.

Not used it above any veg yet, still to set everything up for growing microgreens and veg through the winter, but I have done some electrical tests.

There is a big issue with all LED lighting on Amazon and eBay is where sellers are claiming ludicrous wattage which bears no resemblance to the truth. The ONLY figure that makes any sense is the ACTUAL wattage of the light, this light claims to be equivalent to a 2000w ‘normal’ light which is a load of old dross and claims to be 200w actual current draw which is the figure I have been looking at to compare it to other lights available.

There are several lights available that claim to be 2000w equivalent, and list an actual wattage of 100w, there are 4000w equivalents that also list the actual wattage as 100w, I have seen one that is 2000w equivalent and the actual draw is listed as 65w.

So there is a great deal of lying about the equivalent light power out there and this one is no different, but as I said there is no point in even considering the equivalent to wattage anyway, it is just a marketing ploy, but the bigger problem is that there are manufacturers/ sellers that not only lie about that but lie about the actual wattage which is the only real comparison.

If a light claims to be 100w actual power turns out to be 50w in reality it is only half the power it should be! a blatant rippoff.

All that said, I am please to report that this light actually draws 232W, which is above the claimed actual wattage of 215w, that is very good 😉

For interest, on Veg or bloom only the power consumed is 117w, so half the power and cost..

I have also done a quick Lux test, outside in daylight without direct sun the reading was 800 to 1000 Lux, in the direct setting sun it was 24000 Lux. At a distance of 36″ the LED light gave 4500 Lux, and at a distance of 12 inches it was about 25000 Lux, this was just using a Lux meter app on my Galaxy S6 so accuracy is questionable but the comparison to the light outside is valid.

The light build is solid, it feels light you have some value in hand, the light is extremely intense so don’t be tempted to eyeball it like I did otherwise you won’t be able to see straight for about half an hour!

When I get my Microgreens trays etc set up I will update this review to include actual growing results but I am fairly confident it will be all good.

I’m using this light to grow some rare hard to grown chilli plants.

I’ve connected it up to a smart timer plug which can measure the wattage it’s using and it seems to use a steady average of 76 watts per hour which is hardly anything.

I have set mine up with a timer plug to have it switch on for 12hrs during the day and switch off for 12hrs at night. I’ve got to say that the plant has really responded well to this light, it seems to be thriving. The full light spectrum must be helping and is a real added bonus. The other thing I like is the colour of the emitted light is like a cool white, not the usual pink colour from the red and blue lights.

I like the ratchet hanging system that it is suspended from, you can easily raise and lower the height of the lamp by pulling string through the ratchet clip. And it has another plug socket on the top so you can attach another device like another light by daisy chaining them together.