... surface Ambient temperature: -20 to 40° C Color temperature: 5, 500 to 6, 500 and 2, 700 to 3, 500K Super reliability, ... of available voltage and low consumption. 2,Environment-friendly and no UV or IR addiation. 3,Easy to install and maintain and normal base ... type E can be matched. 4,Replacement of traditional bulbs and no subsidiary fixture ...