1HP Speed Regulator 750W 220V DC Motor Speed Regulator Motor Controller. Speed Control Range: 0-100% AC 220V Input, DC 220V Output. Power: Suitable for 200W/370W/500W/750W DC motors. Minimum Output Voltage: DC 0V. Maximum Output Voltage Limit: DC 90V-180V-220V. Input Voltage: AC 220V. Speed Control Range: 1-1800 RPM (adjustable). Dimensions: 220 × 130 × 120 mm.