1.Diameter: 55mm 2.Luminous type: brighting, flashing 3.Voltage: DC24V, ... 4.Certificate: CCC,CE,ISO9001 Detailed Product Description :Model: SK-501(1)lamp color: red, green, yellow, white, blue(2)lamp: LED ... modelOur company website:http://www.shkele.com/ Warning light SK-501 series