SF4000 LED Grow Light, Indoor Grow Lamp for Plants, Veg to Flower Bloom, Dimmable & Daisy Chain, 4x4 5x5 Grow Tent, Full Spectrum LM301B Diodes and Meanwell Driver

Amazing value for the price. Also the best loght for a 3x3 tent that I have found. The footprint fills the space perfectly and gives great light density everywhere. The only issue I am having is that it doesn't turn on when my loght timer triggers in the morning. Im not sure if it is a user issue and I need to tweak a setting or something, and its not a huge deal as I just need to remember to turn it on when I wake up, but it does put my grow at risk if I forget, which is troubling.Again though, I will chalk this up to being my issue and not the product. It was shipped fast, packed really well, and is a high quality light, especially for the price. Also a small US based business, which I love supporting. Warranty is also amazing.At 25% power and a foot farther away, it is providing the same PPFD that my 100w light was before, and it has the juice to get fat flowers later down the road.If you're looking for a 3x3 light, this is it.

This light is amazing! Beautifully crafted, simple and functional. Grab them for the price while you can I’m sure a product this good will only go up in price. I love the dimmer function on this product I’m able to give my plants just the right amount of light at any given time. These photos are only about 50% of the brightness this light gives off. On about 80%-100% power these lights give off great heat and will noticeably warm the soil. I will continue to buy sono farm products for there great customer service and products! They are extremely helpful and professional!

Just received my light 2 days early . Light was packaged excellent . Plenty of padding . Initial inspection it rivals the spider farmer light I bought a few months ago . Pretty much the same light with a couple differences like the heat sink thickness and diode placement . The drivers are a tiny bit bigger . But there both samsung diodes with mean well drivers which was a big deal as far as what I was looking for. After turning the light on it Bright as F. Just as bright at my other light . Very excited about it overall . Also very happy to help out a small business especially during these times . Nice hand written note from the owner making it feel like a personal purchase . So as far as I’m concerned the value of this light is incredible. Wish I had found sonofarm before I bought my SF. But hey , if I can help anyone else out and save them a few bucks so be it . I’ll do a follow up in a couple months to let you guys know the results .

The price is very good, the coverage great. I want to buy American. Just got it hung and fired up. Definitely heavy duty cooling plate and runs cool. The coverage area is what sold me. Went to 12/12 and will see how she does.I have 2 new viper xs2000 beside it. Both have LM301b LEDs, been waiting to try them. Been using SMD281.BUY AMERICAN!!! SUPPORT YOUR CITIZENS.Completed grow and was happy with results. Had a 5x5 grow, corner and edge plants grew just as good so the coverage is legit. Price is a steal. It has a slight yellow tint which I wasn't sure of at first but no worries on plants.6/25/25. Light is running right alongside a Spider farmer Evo for 2 grows and the Pro 400 is just as good. At today's prices, Soho is$ 130.00 cheaper. Buys a lot of nutes

The light is awesome it works well in a 5x5 had it 4 months so far If your on a budget and want a good light with a good dimmer this is the one.its very bright and don't get very hot at all it gets a lil warm on full power nothing crazy though.it has same parts as more expensive lights like spiderfarmer

First off, I’m a cheapskate. My initial statement is I am an avid “for fun” grower. Not commercial, and not a slum.I prefer to try my best at whatever I do and this hobby is no exception.With that said, I am very happy with my purchase. The company is great to work with. The lights are produced with quality. Like anything in life, more money can get you higher specs, but honestly, my pro 4,000 is doing a great job in my 5x5 thus far.You should give the American made company a chance for yourself

I purchased this 400w light for my new 4x8 space. I originally had a HLG 600r Spec in a 4x4.I am now using both the HLG on one side and the Sonofarm 4000 on the opposite side of a 4x8.Like most of you reading this, I wanted to see how this light compares to the more expensive 600r spec.How it stacks up Vs the HLGSee pictures:the HLG are above the pots, the Sonofarm is set up on the empty side. Sonofarm uses more red in their spectrum but there’s quite a bit of power there, the Sonofarm runs quite a bit warmer then the HLG but comparable to some of the other lights I’ve used in the past.I can lay my hand down on any part of the HLG, this one is quite a bit warmer then that but I feel easily manageable adding a fan pointed at the drivers.Overall I am pleased I saved a little money and tried this light out. With a 5 year warranty and American Made I feel good about it. Hope this helps someone make a easier choice.

Had to watch multiple videos and read reviews for days before deciding on the 4000 series. Arrived on time in soft foam for excellent protection during shipping. Rope ratchets were standard and the wire hangers were coated smooth. Board is thick which helps extend LED life. 5 year warranty promotes confidence. 18 hour work time and nothing is exceedingly hot due to the thickness of the heat sink. DO NOT STARE AT LIGHT DIRECTLY. Extremely bright, produces exceptional results on seedlings even without grow tent. Come paycheck will buy a second. Beyond anything I've ever bought before including name brands like MH and SF due to the same parts but no one else has a thicker heat sink which will extend the part thats most important:the actual LEDs.