ITEM NAME:Speed Controller 10A PWM DC Motor 12V-40V 13khz Control E1D1 Speed Controller 10A PWM DC Motor 12V-40V 13khz Control E1D1 N5M1 12V-40V 10A Modulation PWM DC Motor Speed Control Switch Governor With reverse polarity protection, high current protection. Control the speed of a DC motor with this controller. High efficiency, high torque, low heat generating. color: green Working Voltage: DC 12V - DC 40V. Control Power:0.01 - 400W. Static Current:0.02 A ( Standby ). PWM Duty Cycle:10% -100%. PWM Frequency:13 KHz. Material: CCL Size:6cm x 7.5cm x 2.8cm Weight: 70g Package included:1 x PWM DC Motor Speed Control 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.