Plug in timers are ideal to be used as an automated energy saving or security device. It has 48 settings to program your devices to turn on & off at 30 minute intervals over a 24 hour period. Simply plug in your device in order to use, there is also a manual override switch so if you want to turn your device on or off out of the allocated programmed times, for example if you're home all day & want your device switched on for longer, with a quick flick of a switch you can set it to manual. Great for your Christmas lights, or for use with Lava or Laser Lamps, which have recommended maximum run times. 10cm x 5cm x 3cm depth (excluding pins)UK 3 Pin Plug