2 PCS DC Motor Speed Controller Universal 12V 24V Speed Adjustable Electronic Stepless Speed & Brightness Regulator Switch with Heat Sink for Car Truck Fan Heater Evaporator Defroster and Bulb Control - MYY, YM-M019_2

• ✔️This electronic stepless speed controller with heat sink is a upgraded fan heater controller,which will provide s a better heat dissipation.Widely used for 12-24V DC electric appliances to adjust the speed of car truck fan heaters, defrosters, fans, etc ✔️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 ✔️Exquisite workmanship and strict factory inspection ensure the accuracy of the product. We will perform three manual inspections for you during manufacturing, warehousing and transportation ✔️Easy to adjust and control speed of DC motor, simple wiring and convenient to use, a great replacement for broken one.The appearance is small and good-looking, and it supports adjustment of DC motors, motors, pumps, lamp beads, light strips, fans, etc ✔️ NOTE:DC Motor Speed Controller cannot be connected to household 220V voltage.It can not be reversed, wrongly connected.If you have any questions, contact with us, we will reply you in 24 hours and offer the resolution for you