High Quality of LED Lamp With Long Worklife, Great Luminanting Angle, Super Bright LED(Cree),and Very Special Radiation Design Features ... 10% /3 year)VoltageDC12V (DC9V---15V safe use for solar system)Protection grade: IP65Working Temperature: 30---+70Work life>50000HrsBrightness ... Sport Ares light, Wall lamp, Garding light, Building light,Tree light, Tunnel light etc. Solar lightBHT-L2212V DC/AC22 ...