About this item 【Veg/Bloom switch】: through a wide plant growth testing, the Veg/Bloom switch, was designed to provide proper light for plants in different growth stages to greatly increase your harvest. Veg switch is the blue LED and white LED only used for seed or seedling growth; Bloom switch is the red LED and white LED. For flowering, both Veg and Bloom switches can be used. 【Full spectrum】: KingLED LED grow light provides full spectrum lighting from 380 nm to 780 nm (including UV + IR) of natural light for plants needed of all growing stages from vegetables to flowers. 【Efficient cooling--longer use time】: we use light reflector, it can be more good protection chip, avoid the use of glass closed lamp beads, plus a number of large high-speed mute fan, the lamp temperature is lower, the use of time greatly improved, this is the traditional lamps can not do. 【Energy-saving technology--save a lot of electricity】: SAMSUM chip, energy-saving technology representatives, compared with the traditional 2000w HPS, while providing efficient lighting, the actual power is only 200w,it will save a lot of electricity. 【Professional customer service--3 years warranty】：3 years warranty and 90 days free return, If you have any questions, please feel free to contact us, we will reply within 24 hours and give you a satisfactory result.