12V-40V 10A PWM DC Motor Regulator Stepless Variable Speed Control Switch Module 1. It is a simple and easy to use DC motor speed controller with stable performance. 2. The speed controller is made of high quality circuit board, which ensures longer service life. 3. Equipped with a fuse tube to protect the speed controller from burning out which causes a short circuit. 4. With reverse connection protection function. 5. Designed with convenient screw terminals for quick wiring. Specification: Features: 1. It is a simple and easy-to-use DC motor speed controller with stable performance. 2. The speed controller is made of high quality circuit board, which ensures longer service life. 3. Equipped with a fuse tube to protect the speed controller from burning out which causes a short circuit. 4. With reverse connection protection function. 5. Designed with convenient screw terminals for quick wiring. Specification: Input voltage: DC 12V-40V Power control: 0.01-400W Rated current: 8A Maximum current: 10A Static current: 0.02A (standby) Frequency: 13kHz Speed regulation range: 10% - Hole diameter: 3.2mm Working temperature: -20 ~ 125 Dimensions: 75*60*28mm / 2.95*2.36*1.10in Package Weight: Approx. 73g/2.6oz Package List: 1*DC Motor Regulator