PARFACTWORKS 500W CREE COB Full Spectrum LED Grow Lamp with Two Channels for Grow Light for Indoor Plants (500W)

Takes Full Spectrum to the next level by having different diodes that cover different parts of the spectrum, something that really can't be done with just white with red augmentation. These have dedicated uv and ir diodes - the like of which I haven't really seen to this level (especially in affordable home lights). Excellent combination of wavelength specific diodes plays well into the digital nature of LEDs. Penetration into the canopy is excellent.I started out with 2 for a 3x3 tent. they work well in there for veg and flower. I'm moving them into a 4x4 and have purchased a 3rd to add to it, I don't think 2 are enough for a 4x4 (2 would do a fine job, 3 will be better, not sure if I want to add a 4th (4 would give almost 50 actual watts/sq ft - 3 is 35W/sq ft).Updated 1/2021:I have 570 true watts running my 3 lights, yielding over a pound per crop in the 4x4:35 watts/sf; 108+ grams/sfI'm getting 3+ grams per watt with these lights. I haven't had my best crop yet, but that's my fault.

I've tried several different COB lights at 150W, 300W, 500W and 800W for my grow room. This light by far has the best balance of price, brightness, spectrum, coverage area, power consumption and heat output. It is significantly brighter than the 300W (2 x 150W) COB light I purchased. Compared to the Hipargro 800W COB light I purchased in the same price range, it does not seem any less bright using a light meter and it has a greater coverage area and puts off quite a bit less heat. I have an exhaust fan running full time so I don't notice the additional sound of the fans in these lights, but if everything else were off I do believe these fans are a bit louder than my other lights. Overall, I am extremely happy with these lights and see no reason to keep trying other more expensive lights. I've already purchased my 2nd and plan on getting a 3rd soon.

Perfect light for 3'x2' area, puts out a great, even amount of par even at 4' off the ground (verified par with Seneye reef). Haven't owned it long enough to speak on its durability, however it seems to be built well and remains cool even after days of use. Only con I could think of is that the fan is audible, though most any led light putting out almost 200 watts will be as well.

I really enjoy this light and have had a lot of success with it, the only reason I gave it 3 stars instead of 5 is because I purchased a second one and as soon as I tried to plug the daisy chain into the first one, the receptacle in the first light broke. Fortunately the new lights daisy chain receptacle didn't break.I think it's just an issue with the plastic holding the receptacle to the frame, I assume it will work if I'm able to reattach it.

The spectrum, light output, and build quality on this light are unbeatable for the price point, especially considering they are using cree cobs. The spectrum on this light is very similar to optic brand lights, but these are MUCH more affordable for the home grower. My plants are happy as can be. I’ll definitely be keeping parfactworks in mind for future lighting.

If you're thinking about getting one of these, stop thinking about it and just do it. I'm running two in a 3 x 3 x 6 and the plants absolutely love it. The spectrum seems to be working just as well if not better than the old HID lights. I couldn't be happier

Good light

Feel sturdy, looks good. Very bright, I purchased led/uv protective glasses after installing.

Best light for money they work very well. Better than light twice the price. You shouldn’t be disappointed with this light for growing anything. Pics 1 week into flower.

These lights are excellent quality and have really kick-started our indoor seedlings for the garden. I have nothing to compare the rate of growth or yield but we are very happy with the progress and rate of change day over day, amazing.

Super impressed with these lights!! I ended up buying 2 500w and was worth it. Running them in a 3x3 tent it’s stupid bight in there, going to have a great yield thanks to these lights!