This timer has an instruction slot on the side, which stores the programming manual. Designed with a warm neutral color pallet to compliment today's home interior. The compact design fits snuggly in your outlet without blocking additional outlets. Ideal for lamps, fans, holiday lighting or other 3-conductor appliances. Would you like to come home to a lighted house at the end of the day Switch on a fan at the same time every afternoon to cool a certain room. The Indoor Mechanical 3-Conductor Timer makes it easy; just plug a lamp, fan or other electrical appliance in, set the timer and walk away.