50 Watt Advance Spectrum Tri-Band LED Grow Light Panel Our Advanced Spectrum LEDs come with an industry leading 3 year warranty against manufacturer defects, and are all backed with a 120 day satisfaction guarantee! Try it out for 4 whole months, and if youre not satisfied with your light just send it in fo Our Advanced Spectrum LEDs have a 50,000 hour lifespan, which is more than twice the lifespan of HID bulbs. The blue spectrum (430-460nm) is on the lower end of the spectrum and promotes the growth of leaves during the vegging stage; the red spectrum (630-730 nm) promotes flower growth along with budding during your flowering stage; the white spectrum (6000-120 Advanced Spectrum LEDs are designed to be the coolest running LEDs on the market. The lightweight design cools easily and stays cooler than other LEDs are on the market. The lens on our Advanced Spectrum LEDs are designed for optimum light penetration! Unlike 120 degree lenses that have weak light intensity and 60 degree lenses that offer hardly any coverage, the 90 degree lens we offers a happy medium. You will get the