Input voltage range 180Vac to 264Vac Normal voltage range 200Vac to 240Vac Frequency range 47Hz-63Hz Max input ac current 10A max.at full load condition Leakage Current Less Than 0.5mA @240Vac input Regulation input power range 500-1600W Max.endure input voltage 300Vac Rated Output Anode HV 4200Vdc Rated Anode Output Current 360mA Rated Filament Voltage 3.3V Rated Filament Current 10A http://www.microwave-world.com