Roleadro 800W COB LED Grow Light 9 Band for Plants Growing Integrated COB(chip on board) brand new 3w Eplieds chips, 90 degree reflective cup, best light proportion, perfect solution of heat dissipation, apply to flowering and fruiting stages Spectrum: 28pcs660 16pcs640 8pcs440 4pcs460 4pcs470 2pcs525 2pcs 730 Size: 12.612.63.3 inch Daisy-chain connection which means that you can use many lights together in a series by power cords Patented unique design of reflective cup for higher light-gathering effect. High PAR value and Lux value than normal led grow light, reducing light and Par value loss Integrated COB led grow lights improving color uniformity and luminous efficiency, providing better absorption of lights than normal led grow lights