ITEM NAME:6V-28V DC 3A PWM Motor Speed Regulator Switch Controller Pulse Width Modula A9T8 6V-28V DC 3A PWM Motor Speed Regulator Switch Controller Pulse Width Modula A9T8 High efficiency, high torque, low heat generating. With reverse polarity protection, high current protection. Convenience and easily use. Material: plastic Input voltage: DC6V - 28V Sustained current: 3A PWM euty cycle: 5% - 100% PWM frequency: 21KHz Module dimension: 50 x 29 x 16 mm / 1.97 x 1.14 x 0.63 inch (LHW) (approx) Cable length: Approx 200 mm / 7.88 inch green color Package included: 1 x PWM motor speed controller switch Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.