Bought sf 4000, first switch to led lights. Excellent product, responsive company.

Nice small light very bright works great in my 4x4 tent.

By far the best led's for the money and even rival the more expensive lights.Hand down blow away spiderfarmer and Mars hydro .The difference in growth is night and day compared to all other led's. Family owned company and made in the USA 🇺🇸 with great customer service love my sonofarm lights and will only by this brand from now on

This Light is almost the perfect light for a beginner grower. Easy to set up out of the box, all I did was add a timer. The dimming capabilities are great and the web site has all the info in the FAQ section. The light was hung with zip ties and set to the correct height in minutes. After a couple of weeks the plants are looking like they have been outside but not stressed with heat. The 5 year warranty is a plus too!

So there were no reviews for this product really and I bought it on impulse and just wanting something after doing research. I wasn't sure at first but this light is amazing. We have mary jane 6 plants under this one pro4000 and they are doing AMAZINGLY., due to the light. Would 100% recommend

Worked right out of the box. No need to configure anything!

Such a beautiful little sun, I love it lol thanks sonofarm team 🙏🏿

Growing cannabis indoors on a small scale had always been my limitation. Now with years of experience and a suggestion from a friend to use the App AFTERPAY. I was finally able to upgrade from my small 150 watt LED to my now prized possession SONOFARM PRO SF4000. Cannabis is my passion. Over night my girls shot up, tips up, and heavy trichome production . If funds is your only dilemma use AFTERPAY with one initial payment of 85 bucks you get the product then every 2 weeks for 3 more payments of 85 dollars you too can have the light you been dreaming of! Thank you SONOFARM for helping me chase and achieve my goals!

SonoFarm UV + IR PRO - Farmer Series 450W LED Grow Light Full Spectrum Diodes Dimmable Daisy Chain Commercial Indoor Veg Flower Growing Lamps Hydroponics Greenhouse Lamp 3000K 5000K 660nm 760nm IR

I recently bought the Sonofarm SF4000 rather than spending a little more for a Spider Farmer SF4000. Very impressed. I have a Spider Farmer as well, and the heat sink isn't nearly as thick - Sonofarm is 4mm thick. All other aspects of the lights are nearly identical. Same Samsung diodes, same driver, same lifespan. What I really like about Sonofarm over Spider Farmer is the warranty (5 years), the shipping (boxed better than Spider Farmer), and the customer service (Sonofarm is US-based and has 24/7 support). Sonofarm also has a very responsive Chat. I asked a question late one evening and had a response in less than a minute. Also, the Sonofarm runs more efficiently, using 400W rather than 450W to achieve the same results. Not a lot, but every little bit helps. It's easy to see that Sonofarm is attempting (and succeeding) on being a direct competitor of Spider Farmer. The better construction, solid shipping, slightly lower price, and US-based support tips the scales in favor of Sonofarm. Great job, guys! Impressive, most impressive! If this isn't listed as the #1 LED grow light for 2022, I will be very surprised.

I bought this light and a master controller and have received both. Couldn't be happier. The dimming adjustments on the light are easy and convenient. 5 year warranty. Great product

The UltraX 900 us a quality product at an extremely reasonable price! The variable spectrum and wattage integrated into the onboard controller makes the UltraX 900 excellent for veg and flower.

Since I have switched over to this light from 1000 watt HPS. My grow room is much cooler and I don't have vent tubes running everywhere. No timmers either, its all integrated into the light.

The biggest difference has been in the plants. Their colors are more vibrant and crisp, thier leaves are perkier and they pray longer. Their rapid root growth is what really blew me away. The plants look like they are achieving their full potential.

I did a lot of research before buying this lights. One of my buddies runs Volts and my other runs Grower's Choice…. both are jealous. The construction of the UltraX 900 far exceeds them both.

Here are my PAR readings with the UltraX 900 set upin a 12x12 room with white panda paper on the walls:
12" 1255
18" 1065
24" 875
36" 595

I would expect the readings to be 15-20% higher in a 5x5 tent due to all the reflection.

Since l liked the light so much (and they gave me a coupon for 8% off) I purchased another one. That one is going in a 5x5 tent. I will share my results soon. I do expect it to test similar to the company's video on YouTube.

If you are thinking about purchasing this light I would say go for it. I'm not sure who likes it more, me or my plants.

Just got my Maxx pro 8 @sonofarm.com and it just great 👍 💯.. the light showed up it two or three days , it was quick ... The support team answered all questions I had and believe me I had alot 😂 with speed and courtesy.. definitely check these guys out if you're in the market for a new light great purchase..

Very quick shipping,five days to Argentina,and and great packaged with double box. Plug and play equipment although different voltage. First impressions is very good with 0 heat in driver and board. Only complain is the cable little short. Congratulations!!!

I love the light so far and intend on buying more just trying to wait on the best deal