1.Size: length#65306; (L*W*H): 85*55*38mm / 3.3 * 2.2 * 1.5 inches #65292;knob hole 6mm.
2.Maximum power: 4000W (resistive load limit power), long time should be reduced power use. Long time resistance load recommended within 2000.
3.Efficiency: more than 90%.
4.Working voltage: AC 220V.
5.Adjust the voltage: AC 0-220V.