1. Compatible with any version of Raspberry Pi 2. With infrared light 3. You can adjust it based on the distance 4. On board photoresistor, on board adjustable resistor; Operation: connect LED board and PCB board of camera w/ screw, adjust resistor of LED board (IR light auto work when it is dark and auto off if it is bright). Product Description: 1. 500M pixels 2. OV5647 sensor chip