DC Motor Governor 5V 12V Adjustable Speed Controller Regulation Switch with Speed Control Knob 2/3 Wire Fan Speed Governor Noise _x000D_ _x000D_ _x000D_ Features: 1. Smooth DC output, good control effect 2. With switch, can be turned off 3. The appearance of the product is exquisite 4. The starting speed can be adjusted, and the use effect is good 5. Simple and convenient operation Parameters: Working voltage: DC5-12V (DC4.7-14V) Fan current: 0.1-1A Fan current is lower than 0.1A, the control effect is slightly poor, and over 1A may damage the circuit board Self loss, less than 30mA without fan Starting position adjustment range: 0%-60% (internal circuit control parameters) Output interface model: 2510-3P, spacing 2.54mm, conventional CPU, chassis fan socket Description: Pay attention to the positive and negative poles and the power supply voltage (reverse connection will damage the board), it can be used after the power supply and fan are connected, the potentiometer is turned off counterclockwise to the end, and the clockwise end is the maximum output A separate small adjustable resistor (initial speed adjustment) on the board is used to adjust the speed at the just-open position. The input of the speed signal port is directly connected to the output of the fan. It is mainly used to guide the fan speed signal back to the main board of the device to detect the speed. No connection between controller circuits Precautions: Do not control the fan with more than 1A, do not connect the wrong or reverse power supply, do a good job of insulation to avoid output short circuit Package includes: fan switch Module X1 _x000D_ _x000D_ _x000D_