power:0.18KW current:0.53(A) EFFICIENCY:65.0% POWER FACTOR:0.80 circumstance for use :the altitude not exceeding 1000m above sea level .the ambient temperature subject to seasonal variations but not exceeding +40C and not less than -15c features:high efficiency and energy saving ,low noise and little vibration ,the insulation class is F,the protective class is lp54 or lp55