Globe Indoor Mechanical Vacation Timer with Random Settings #2421301 Energy saving solution by controlling lights: on when required and off when not needed. Grounded outlet protects against short circuits. Digital timers are easy to set with a large display area and provide to-the-minute accuracy. Sleek design and compact size make them an ideal fit in any room. Digital models provide the convenience of AM/PM or 24 Hour display and feature a rechargeable battery back-up.