LED down light is energy saving, environmental protection,no radiation,Save Electrics. Can produce as customer's requiment. Liangwei LED down lightgood ... over 84%.Grading: Adopt particular light distribution, the spot is very uniform and soften the light.Energy conservation: The 18W ... be used for 50,000 hours.No Flicker: Using off-line PWM switch constant-current supply driver, high color rendering, ...