GE myTouchSmart Automatic 6-Hour Outdoor Plug-In Timer, Black, 36170

Set your landscape or patio lights to automatically turn on when it gets dark. Thanks to the built-in light sensor, they will stay on for a set amount of time each night. Works with most LED, CFL, incandescent and halogen bulbs, including dimmable LEDs and CFLs. Automatically turns on at sunset and off 6 hours later. Light sensor needs direct access to sunlight and should be shielded from flood and security lights in order for the timer to work properly. Water-resistant design with a single grounded outlet guards against damage. Integrated bracket allows easy mounting.