For the growers who wanna increase more yield and pay less on the LED lights. UPL is a simple& effective company that can meet your needs... UPL is a factory who focus only on led grow light since 2014. Our professional Hoticulturalists work together with 3rd-party consultants to understand plant and light interactions. UPL collaborates with some of China's leading horticultural Universities and utilizes this knowledge base to develop the industry's most advanced lighting system that could genuinely be useful for plant growth... I have known the core team members of the UPL for more than 10 years and they have been very professional in the design of the lamps and even more fortunate in their experience with crops, they have always given us free consulting services for our projects, which is pretty cool. It is no surprise to say that we have been able to earn $35,000 on a single plant by relying on their updates on products and lighting formula, so if you too want to find a..