Description:--3W high-power 850 infrared LED --Onboard photoresistor， the ambient light detector--Onboard adjustable resistor， for controlling the ambient light threshold of toggling the infrared LED--Allows adding night vision function to RPi Camera (E) or RPi Camera (F) How to Use:1.Connect the Infrared LED Board to the camera PCB by screws2. The screw holes are used for both attachment and power supply3. Adjust the adjustable resistor to set a proper ambient light threshold， which toggles the infrared LED automatically4. When ambient light is lower than threshold value， the infrared LED is on， vice versa Package includes:2 x Infrared LED Light 3W 850 Infrared Led for Night Vision Raspberry Pi Camera ( Only 2pcs of Infrared LEDs )