GAOAG Plant light (Yellow)

This will grow what you want exactly how you want. I've bought 4 of these, no complaints at all. The LED's reduce heat, easy set up.

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!!!

Spider Farmer SF4000 light is top notch. Highly durable and perfect wattage for grow. Warranty for 5 years. I had my power supply ballast go out after 2 yrs. Of continuous use and customer service helped me replace it hassle free. Took about 2 weeks for the process and shipping. I can say to just be patient as it works out. Nolan went above and beyond with customer service.

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.

I’ve purchases 2 Spider Farmer SF4000, 1 recently and the other just a few weeks shy from going out of warranty 5 year ago. The first light I purchased was just weeks under 5 years ago, which had a bad light controller, which was a feature I had not used until I recently purchased the second light along with the GGS Smart Controller in April 2026. I contacted the Spider Farmer support team thinking I would get the run around. To my surprise, they not only responded in a timely fashion, but they remained in contact with me until my light was fully operational again. I want to thank Nolan and Spider Farmer Support Team for sending the parts I needed. It’s a real pleasure to find a seller who honors their products warranty, even though it’s just a few weeks shy from the warranty expiring. Let me also add I have recently purchased many other smart products from spider farmer, such as the GGS controller, a second SF4000 light, several EC, water and temperature sensors, light sensors, fans and power strips were added this year. The Spider Farmer products have been a real game changer for me in smart gardening. I’m looking forward to buying more products from Spider Farmer.