... light source LED Downlight 3W, 7W, 10W, 12W, 15W, 18WSpecification Product ModelGPD10303xxGPD10407xxGPD10510xxGPD10612xxGPD10815xxGPD11018xxSize3 inch4 inch5 inch6 inch8 inch10 inchPower3W7W10W12W15W18WColor ... °Housing MaterialAviation aluminum + PMMAStorage Temperature-40~+60°CWorking Temperature-20~+40°CWorking EnvironmentIndoorLifespan / Warranty>40,000 hrs / 3-year warrantyCertificateCEOverall ...