Description:

• It is a PWM fan control board.
• The PWM fan control board adopts the PWM speed regulation scheme,which can better adapt to the 4-wire speed regulation fans on the market.By rotating the potentiometer,the fan speed can be easily adjusted.

Feature:

• The PWM frequency is 25KHZ,which can adapt to most 12V adjustable speed fans on the market.
• The duty cycle of the fan speed controller can be adjusted from 0% to 97%,and the speed regulation range is wide.
• Rotary potentiometer with switch,easy to start and stop.
• The fan speed controller is small and easy to install.

Parameter:

• Product Name:PWM Fan Control Board
• Input Voltage:12V
• PWM Frequency:25KHz
• Duty Cycle:0-97%
• Adapt to the Fan:12V adjustable speed fan
• Work Temperature:-25℃~85℃
• Work Humidity:5%~95%RH
• Size:24x19x25mm

Instructions for Use:

• It needs to solder the wire by itself and connect to the 12V voltage.Pay attention to the wiring sequence from top to bottom.Pin 1 is grounded,pin 2 is connected to 12V,and pin 3 is not connected.
• Rotate the potentiometer,turn on the switch,the red led will light up,which means the power supply is normal.
• Continue to adjust the potentiometer clockwise,and the fan speed will gradually increase.

Package:

• 2pcs PWM Fan Control Board