The 100 infrared LEDs on this powerful Wireless Infrared Booster increases practically any IR camera's nighttime functionality. Offers 2 level of infrared power (50 or 100 LED). Triggered by a wireless transmitter from up to 50' away. Compatible with most infrared cameras. Booster requires 4 D batteries (not included) or 12V power; transmitter requires 2 AAA batteries (not included). Low-battery indicator.