Could not be happier with the build quality and performance.

Started using this light in October. Excellent light, full coverage in my tent. Would recommend and would buy again.

I bought this light to to replace a 150w that I was running. I decided to finish up the plant that I was already growing with my new SonoFarm even though I only had a few weeks to go before harvest. So I made the switch. All I can say is wow! The bulk and the trichome production that the uv has added is impressive. On top of that this light runs really cool and has the capability of placing the driver outside the grow space for even cooler temps. Great product so far!

It's a beast of a light .

After growing with the light that I bought from sonofarm for a year I have been absolutely satisfied. But when the master control on my light had an issue I found out that sonofarm has the best customer service team that I have ever had the pleasure of dealing with. Thank you sonofarm for being so great. I will never use any other lighting company. You definitely have a customer for life.

i needed another grow light and researched them all and found that the sonofarm was the best quality and price. this sf 4000 is very bright and well built, pretty too.i already have a mars hydro but this light is better quality and less money so you cannot beat sonofarm if you need a really good growlight and shipping was very fast , recieved it the third day after ordering/i am well pleased with sonofarm,and they are americans with great customer service,unlike the chinese people. thank you sonofarm

Have bought 4 lights from them and are planning on buying more they just look good in my gorilla tents and out preform any other light I have had in the past. They are Made in American. Had the lights in 2 days from SC to MO each time I have bought lights This company is on point with everything. Thxs SonoFarms for a outstanding product.

I did weeks of research before purchasing this light. I compared this light to lights like the gavita 650w. This light out performs the competition on many aspects and is built extremely well. I definitely will be ordering more lights from you guys! It has Samsung lm301b diodes which is a nice and efficient diode. The power draw is about 645watts from the wall. The operating temperature is reasonable for the light and also you can remove the driver and mount it outside of your grow space. Thank you for making a quality affordable product for the indoor agricultural community! I would definitely recommend this light if you a grower on a budget or even if you can spend as much as you want.

My wife and I bought the sf4000 for our first indoor grow to extend our vegetable growing season. We got the light last wednesday, today is the 5th day and there is a huge difference already! We are growing Kajari melons in a 4x4 tent. If you are wanting a high quality light from a great brand, then look no further. I spent hours reading reviews and contacting growers who posted reviews using the "other" brands. I can tell you one thing, the owner of this company does not have to bribe me with promises of huge discounts or being sponsored with free lights for a great review. The product speaks for itself! In fact, we plan on buying another sf4000 soon to grow lettuce/herbs in a different 4x4 tent.
Oh, I almost forgot, an American small business with an 5 year warranty to top it all off!

This is an extremely well made light and very heavy. Awesome light

I got this light on sale for $300 and decided I had to have it to replace three cheap 100w LED units. This thing provides much better light coverage than multiple smaller lights on top of being better quality diodes. I run the same strain and this run is my first flowering with this light and my plants look absolutely amazing and the nugs are much bigger already compared to where they were this time with the last lights. Their listed PAR maps match my readings as well, so they aren't exaggerating their performance.
If you're ready to pull over a pound a run with minimal wattage, this is the light for you.

First I can't believe how quickly my order was processed and shipped!!! Thanks
Second the light is very strong and is doing a great job 👍

So i just bought a PRO 1000 for a 2x2 tent and its working awesome, the plants are loving it! it arrived fast, the dimmer works great, and instalation was really simple. Im coming back for more thats for sure! Great light for great value!

SonoFarm PRO - Farmer Series SF4000 LED Grow Light Full Spectrum Diodes Dimmable Daisy Chain Commercial Indoor Veg Flower Growing Lamps Hydroponics Greenhouse Lamp 3000K 5000K 660nm 760nm IR

I don’t grow your typical things with this light, I actually do citrus trees in the north. These lights are just phenomenal. Been using them for 2 years now. Just upgraded to two large lights. Will never buy anything else.