Features:This PWM direct current motor speed controller is suitable for DC6-90V motor.Input protection: when input voltage is inverting, it does not work, it is good to protect the speed control board and power.Input DC6-90v, the governor can only be used for brush motor.direct current governor, this product with digital display, display output voltage, and with power switch.This PWM direct current motor speed controller comes with 20A ceramic fuse.The maximum current can reach 15A ,suggest within10A for use.The following is the corresponding power of different voltages: 6V=60W, 12V=120W, 24V=240W, 36V=360W, 48V=480, 60V=600W, 72V=720W, 90V=900W.Specifications:Suitable: DC6-90v (wide voltage)Rated current: 8AMaximum current: 15APower range: 0.01-1000W speed range: 0 - 100 percentFrequency: 16 KHZWeight: 470gPackage Included:1 x Direct Current motor speed controller.