Single PWM Fan Speed Controller DC 12V Mute 4 Pin Computer Temperature Control Switch Cooler Fan

Specifications Input Voltage 5 12VColor BlueMaterial PCB PlasticSize 24 19mmWeight 9gFeatures 1 The PWM frequency is 25KHZ which can adapt to most 12V adjustable speed fans on the market 2 The duty cycle can be adjusted from 0 to 97 with a wide speed range 3 The rotary potentiometer has a switch for easy start and stop 4 The rotary potentiometer can adjust the starting speed 5 Short circuit the PF pad to reverse the duty cyclePackage includes 1 x Fan Speed ControllerOnly the above package content other products are not included Note Light reflection and different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is 1 3cm