1.Diameter: 80mm 2.Luminous type: brighting, flashing, shining 3.Voltage: DC24V, AC110V, 220V 4.Certificate: CCC,CE, ... (1)lamp color: red, green, yellow, white, blue(2)lamp: LED(3)Rated Withstand Voltage: AC2500V(4)Rated Insulation Voltage: AC690V ... company website:http://www.shkele.com/ SK-82 Round-head warning light