Feature: FUNCTION: Pulse width modulation (PWM) technology provides stable speed control with high torque at low speeds. NOTICE: This is a DC brush motor controller; do not use with AC motors. WIDE USE: Suitable for industrial DC motor speed regulation, DC fans, and similar applications. EASY to USE: Features a reliable speed control mode with stable performance, adjustable speed, and simple installation. Specification: New. Supply Voltage: DC 9V-60V. Installation Method: Panel mount; connect according to the wiring diagram. Color: Black. Material: Metal + plastic. Size: Approx. 99*60*90mm. Package Contents: 1 x 10A PWM Motor Speed Controller. Note: Other items not included. Lighting and display differences may cause slight color variation between image and actual item. Measurement error allowed: +/- 1-3cm.