Black & Decker FWMD Freewire Indoor/Outdoor Motion Detector Lights and monitoring cameras automatically turn on when motion is sensed, 24 hours a day (or night setting only) Can be used indoors or is weather resistant for outdoor use Adjustable time delay from 1 minute to 256 minutes Night Only setting: senses motion from dusk to dawn Dusk/Dawn setting: turns lights on at dusk and then off at dawn