Features:

Control the speed of a DC motor with this controller.
High efficiency, high torque, low heat generating.
With reverse polarity protection, high current protection.
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: Plastic, metal.
Size:6cm x 7.5cm x 2.8cm
Weight: 70g

Package included:

3 x PWM DC Motor Speed Control Switch