Timeguard 1 Gang 2 Way Programmable Security Light Switch

Turns room lights on at dusk and off automatically up to 8 hours later or until dawn [adjustable]. 2000W halogen, 250W fluorescent [low-loss or Electronic ballast], 250W CFL [Electronic ballast], 400W LED Lighting permissible load. Replaces existing 1 or 2 Way light switches -- 2 wire. Manual ON / OFF Switch. Red LED indication when switch is set to any on-time duration. Low battery alert LED indication. Adjustable lux setting. Supplied with 9V battery.