Features 1、The speed controller has a clear scale, which can accurately understand the current and voltage conditions and adjust the speed more accurately. 2、Safe to use, using aluminum plate heat sink, DC motor governor has fast heat dissipation, and can prolong the service life. 3、Using high power circuit board, DC motor speed controller has large starting current and stable speed regulation. 4、1HP speed control input voltage is AC220V, output voltage is DC220V, power is 750W. 5、This adjustable speed range of this product is 1 to 1800 rpm, which can well meet your basic speed adjustment needs. Specification Item Type: DC Motor Speed Controller Material: Aluminium Alloy Output Voltage: DC220V Input Voltage: AC220V Power: 750W Adjustable Speed Range: 1 to 1800 RPM Adjustable Speed Range: 0-100% Package List 1 x DC Motor Speed Controller