Specifications: 1) Lamp power: 400W 2) Voltage: 120V or 230V, 50/60Hz 3) Current: 3.45A / 1.83A 4) Input power: 420W 5) Output power: 400W 6) Power factor: more 0.99 7) Voltage range: 90~160V / 175~265V 8) Ambient temperature: -25 ~ +50oC 9) Enclosure temperature rising: 30oC 10) Safety protection: IP21 Features: 1) Outstanding energy-saving effect a) Low power loss b) High power factor c) High lighting efficiency 2) Perfect protection and monitoring function a) Built-in voltage monitoring function b) Trouble-detecting protection function 3) Dimming, adjustable output power 4) Light weight, small size, non-flickering, noiseless