【Features】Easy to adjust and control speed of DC motor, simple wiring and convenient to use, a great replacement for broken one. Extra long knob screw to meet installation needs 【Universal】Voltage 12V or 24V. Overload current: 10A. Supports high power, 12V/120W, 24V/240Wrsal】Voltage 12V or 24V. Overload current: 10A. Supports high power, 12V/120W, 24V/240W 【Wiring】Red wire connected to the positive pole of power supply and motor, blue wire connected to the negative pole of motor, black wire connected to the negative pole of power supply 【Heat dissipation】This electronic stepless speed controller is a upgraded fan heater controller with heat sink that will ensures a better heat dissipation 【Application】Widely used for 12-24V DC electric appliances. Adjust motor speed, automobile fan heater control, defroster, fans speed regulation, etc Parameters:
● Voltage: Universal 12V or 24V
● Overload current: 10A
● Rated power: 12V/120W, 24V/240W
● Size: 3.66*1.42*1.26 inch
● Weight: 3.53oz

Product features:
●PWM stepless speed regulation switch can completely turn off the output. Extra long knob screw to meet installation needs
●The appearance is small and good-looking, and it supports adjustment of DC motors, motors, pumps, lamp beads, light strips, fans, etc
●Comes with heat sink to meet heat dissipation requirements

Wiring Connect:
● Red wire: Connected to the positive pole of power supply and motor.
● Blue wire: Connected to the negative pole of motor.
● Black wire: Connected to the negative pole of power supply.
Wiring precautions: (can not be reversed, wrongly connected)

Product size:
●Shell size: 2.48"*1.41"*1.26"
●Knob diameter: 0.28"
●Knob thread: 0.55"
●Knob with knob cap total length: 1.18"
●Cable length: 3.93"

Package included:
●1 × DC Speed Controller Switch

NOTE: The governor is suitable for 12 and 24V DC power.
It cannot be connected to household 220V voltage.
When using it, the positive and negative poles of the power supply cannot be reversed.