Efficiency: >/= 88%; Waterproof grading: IP67. With over-current, over-voltage, overload, over temperature , short circuit, open circuit protection(self-recovery). Constant output current, high frequency conversion, low temprature, long service life. Input voltage with high conversion efficiency, >/= 88%. High accurate input current, low noise, safe and stable. Can drive all colors LED. Aluminum alloy housing, waterproof, convenient for outdoor usage. Compatible with ceiling lamp, wall washer light, integrated project-light lamp and so on.