[input] Input voltage range: 220vac10%; frequency: 50hz2%; input power: 5kw [output] Output voltage range: 20kv-450kv; kv adjusting accuracy: 0.1kw; output current: 30ma; Ma adjusting accuracy: 0.1ma; cycle of operation: continuous [working environment] Temperature: 5-50µ; humidity: 80%; air atmosphere: 70kpa-106kpa; Dimension of controller: 50034680mm; dimension of high voltage generator: 8304761080mm