... or RF interference 2,Good heat sink system,no flash,super bright 3,Factory price,good service ... -CASTING ALUMINUM,BASE:PC,LEN...CERTIFICATION: CE RoHSLED light POWER: 5W1.SpecificationPower consumption:5WInput Voltage:100-240VAC/50-60HzLight ... energy saving 90% than conventional incandescent bulbs11, No strobing during working, fast response (no delay)12, Specific high effective constant current ...