SF4000, Samsung LM301H EVO Led Grow Light, Full Spectrum Plant Lights, 450W Dimmable & High Efficiency & Deeper Penetration Commercial Lamps for Seedling Veg & Bloom in 4x4 Grow Tent

I got this light at the beginning of the year to start my summer season crops indoors before the snow melted so I could get a jumpstart on the spring planting season. Its pretty damn nice!!! A little bummed they raised the price once they realized what they had, although they did add an external dimmer on the newest model which I totally wish mine had. The growth and yields are pretty dang nice, and it covers a 4x4 table very well!!! I have ran this against 600HPS in a magnum XXXL hood. ( our old commercial standard for 4x4 tables ) and it holds it own very well. I do wish the boards where a little farther apart and the whole unit was a little larger just an extra .75inches between the boards would have worked and really gave amazing coverage over a 4x4 without hurting anything IMO. Now is this an American Made HLG no no its not, BUT that doesn't mean its not a very good light for the money!!!!! With the new improvements such as the external dimmer dial, and daisy chainable dimmer control so 1 dimmer can run multiple units is a great feature for future upscaling. Now it does tend to run a bit hot to the touch, nothing like a non air-cooled HPS runs but still easily over 100 degrees farenheit. Also the cables and clips provided to hang it do work, but if you have lower ceilings or space is of a premium in your room/tent they can be a bit annoying as they take up about 8-10inches of additional space the way its designed. This is nothing that can't be worked around with a little creative thinking but is still a tad annoying none the less. Quality and yields ( for fragrant/medical flowers ) have been plenty nice, at 400-450watts power draw it tends to produce about 45-50 grams a sq. ft. depending on your style and of course genetics but still on par with running 600 HPS over the same table, same genetics, same everything only thing changed was the light. Long story short, if you need to cover a 4x4 and do it well, the SF-4000 is a solid performer!!!

Absolutely great product. Quality Meanwell drivers coupled with Samsung diodes. Can move the drivers out of the tent if you wanted to to reduce heat. Quality buildand construction is great, is obvious as soon as you open the packaging. The best light for this price point, after all my research I'm really glad I chose this over a more expensive light. I thought I was only buying what I could afford, but I was actually buying something that out performed more expensive lights, as I've personally seen the difference between mine and a friend that spent double the money, with mine out performing it. This is my own personal experience.

Driver went out after only 13 months, i was pissed but customer service was incredible and they sent me a new ballast which i only had to pay shipping for. The light itself is truly top of the line, sf for the win!

Bought this Lite in 2020 it just wen half out after 6 years. Very good Like only reason I gave it 3 not 5 is it got really hot and didn't put out as advertised ....

I love these. I grow veggies in my garage during the winter. Very good grow lights