Intermatic Incorporated HB31R 24 Hour Heavy Duty Outdoor Timer With this timer you can set up to 2 (two) ON / 2(two) OFF settings per day. Great for outdoor Christmas light displays, low voltage lighting, pool and pond pumps, security lighting , engine block heaters and more. Equipped with full 15 amp capacity controls lighting and heavy-duty loads such as motors and pool pumps, grounded plug, manual override ON/OFF switch, waterproof cover, and a heavy-duty 18 inch grounded cord. Maximum ON Time is 23 1/2 hours and it's minimum ON Time is 1/2 hour. Can operate in temperatures from - 40 degrees Celsius to + 40 degrees Celsius. Come with a full 1 year manufacturer warranty.