【BLDC Speed Control】This BLDC controller is designed for 3 phase brushless motors with DC 7 to 24V input, rated 15A and 200W output, fitting speed control needs for pumps and fans. 【Built In Potentiometer】The brushless motor controller includes a built in potentiometer for direct speed adjustment. Turn clockwise to increase speed and counterclockwise to reduce speed. 【PLC Signal Support】This brushless motor speed controller also supports external PLC 0 to 5 analog control signals by connecting the potentiometer cable to the related input port. 【Compact Component Design】Made of electric components material, this controller weighs about 27g or 0.95oz. Compact size helps simplify installation in equipment with limited internal space. 【Wide Application】Suitable for pumps, water pumps, oil pumps, fans and similar equipment. Maximum speed reaches 224000RPM for 2 pole motor and 74000RPM for matched applications.