The PWM frequency is 25KHZ, which can adapt to most 12V adjustable speed fans on the market.
The duty cycle can be adjusted from 0% to 97%, and the speed regulation range is wide.
Rotary potentiometer with switch, easy to and stop.
Input voltage: 12V.
Small size, easy to install.

Type: Governor
Feature 1: Fan Speed Controller
Feature 2: PWM speed controller
color:Blue
Material:Metal

Package Contents:
3 x Fan Governor