RioRand DC 10-60V Max 20A PWM DC Motor Speed Controller Waterproof Shell 12V 24V 36V 48V Pulse Width Modulator Rotary Switches Motor Speed Regulator Driver Board Module (6V-90V 15A) Practical shell,waterproof ,simple and easy-to-use,stable performance Output Power:12V*10A=120W,24*10A=240W,36V*10A=360W,48V*10A=480W Input VoltageDC 10-60V;Output Voltage:0-100% PWM Frequency: 25kHz;Duty Cycle5%-100% If there is any issue pls just contact us and we're more than happy to help