LIGHTHOUSE HYDRO LED 7th Gen Ultraviolet 3 BAND FLOWERING MODEL NEW MODEL FROM THE #1 LED Grow Light Company In The World Great Starter Light Or To Fill In Dark Areas 50W Tri Band UV Flowering 660/630/425 Not all light is created equally. And neither are LED lights! At least not as far as plants are concerned. This is a brand new model which uses the most powerful LED available, 3watt chipset and a redesigned heat sink for reliability. Beware other companies selling inferior Chinese chipsets and not modifying the heatsinks. Multi-watt LED's need special cooling, lighthouse disperses their LED's and has added additional FINS and higher output fans to address this issue. Lighthouse light is unique and the only company to use 425nm blue LED's for better flowering performance.