Gianor 600W Led Grow Light Full Spectrum Double Chips Led Light Grow with UV/IR for Greenhouse Plant Veg and Flower High efficiency/lower heat output , Lower consumption cost less electricity bills, more efficiency compared high pressure sodium,Incandescentor metal hallide plant lights. Newest technology , New dual chips, much brighter/efficiently than 3W and 5W LEDs. Maintain High PAR/LUMEN output PER LEDs. Excellent heat dissipation , Holes on light plate and 2 vents plus 2 fans make the air form convection, lower the grow lamp's temperature 15~20 effectively. Ensure long lifespan. Full spectrum lighting , Gianor 600 watt full spectrum led grow lights offer varieties wavelength lighting your plants required. Benefit to promote indoor plants' germination, seedling, veg , flower at all stages. 3 Year Warranty , Free returns(30 business days). Any problem using the light, Please contact us first. (Purchase quantity 2PCs, Off 2% per grow light).