... ,High reliable constant current driving guarantees long life span of the lamp beads2,Wide input voltage :AC85-265V /50-60Hz ... power consumption, saving up to 40-50% compared to traditional fluorescent lamp and 80% to traditional incandescent lamp, on the condition of same illumination4, ... , low heat radiation, mercury free, no polluting materials in the process of using5,Long life span of over 50,000 ...