The AT-15 is a medium range IR illuminator built around 940nm (fully covert) LEDs. It features a built-in power supply, a day/night switch (Ambient Light Sensor or ALS) and a manual output control. The housing is rugged, has two tripod sockets (1/4"-20), is environmentally sealed and is waterproof (IP-66). U-shape bracket is included. Optional accessories include various mounting brackets and power supplies. Covered by a lifetime warranty. Made in the USA.