1/ 3" AVTECH color CCD image sensor, Satisfied minimum illumination: 0.4 Lux / F2.0, 0Lux ( IR ON) , IR distance up to 15 meters with 21 IR LEDS. High sensitivity in the dark environment, 0.4Lux / F2.0, 0Lux ( IR ON) Day and night features for 24-hour surveillance Excellent image quality IR LED effective range reaches up to 15 meters