... tubes or 80% than that of incandescent lamps;No UV or RF interference, no mercury ... 10%2, Isolated power supply ( very safe )LED NumberOptional3, PC cover: tanspatent/frost/striped availableInput VoltageAC ... , 50000hours.4. Visual health --- no flicker, protect eyesight.5. No cost of maintenance and easy ... of led lights,such as led tube light,led flood light,high bay light,led street light,led tunnel ...