Features: Onboard- 3W high-power 850 infrared- lamp On-board photosensitive resistor (detecting ambient light intensity) On-board adjustable resistance (adjust the ambient light intensity threshold for automatically turning- on the infrared- light) The field of view angle is 140 degrees, which can achieve infrared- night vision effect with raspberry camera RPi Camera 3W high-power 850 infrared- lamp (with adjustable resistor and photosensitive resistor to automatically turn on the 3W high-power LED lamp according to the ambient light to see if it works), the adjustable resistor can be slightly twisted-by small screwdriver to adjust the ambient brightness to see if the 1W LED lamp works. Specifications: Item:forRaspberry pi3B+4B Camera 3W High-power Infrared- Night Vision Led Fill Light Length:approx 2cm/0.79in Operating instructions: Connect the LED lamp board and the camera PCB-base plate with screws Adjust the adjustable resistance on the lamp panel (when the light is dark, the infrared-lamp will work automatically, and when the light is strong, the infrared- lamp will turn off automatically Note: 1. Due to the limited- power forraspberry pi-, the effect of shooting objects within 1-2meters is good, too far away, and the effect is not ideal-. Do not shoot if you mind. 2. This infrared- light is 3W high-power. When forRaspberryPi is connected- to the 5V 2A power supply and the peripheral equipment has mouse and keyboard-, it is connected- to the camera and two 3W infrared- lights. forRaspberryPi and the camera can work normally. However, when it is used for long time-, forRaspberryPi power chip and two 3W infrared- lights will generate different degrees of heat, so pay attention to the heat dissipation problem when using it (external heat sink can be connected-), At the same time-, the additional power consumption of the wholeforRaspberryPi board should be considered. Package includes: 1PC x LED Fill Light