G550-4H UV IR FR Adjustable Spectrum LED Grow Light for Indoor Professional Growers LED Grow Light 2 sets covering 4ft*4ft are

2 sets covering 4ft*4ft are better

AC120V-277V

with high efficiency

especially suitable for medicinal plant group cultivation seedlings

G550-4H UV IR FR Adjustable Spectrum LED Grow Light for Indoor Professional Growers LED Grow Light 2 sets covering 4ft*4ft areG550 4 channel high performance LED grow board for commercial horticulture cultivation. Not intended for beginner growers or grows without CO2 supplementation, Four independent spectral channels, compatible with "Horti Guru" plant lamp control system, can adjust the spectrum you need, with high efficiency. Among them, channel 1, more blue photons, suitable for vegetative growth at seedling stage, with light efficiency as high as 2. 8umol j; channel 1