myTouchSmart In-Wall Digital Timer, 4 Programmable On/Off Buttons, 2 Easy On/Off Buttons, 24 Hour Daily Cycles, Blue LED Indicators, with Battery Backup, for Indoor/Outdoor Lights, Fans, 26893 Save time, money and energy by scheduling your indoor lights, outdoor lighting, fans or other devices saving you time, money and energy! Ideal for ceiling lights, ceiling fans, exhaust fans, patio lights, and more. Simple Set timer features 4 programmable On/Off buttons and 2 On/Off override buttons for when you need to use the connected light/fan outside of your selected scheduled times. Blue LED indicator lights next to each button show which buttons/programs are currently active or selected. Compatible with LED, CFL, Incandescent and Halogen bulbs as well as dimmable LED and dimmable CFL bulbs. Replace your existing light switch - (NEUTRAL WIRE IS REQUIRED  WALL PLATE NOT INCLUDED) Screw terminal installation provides improved space efficiency when replacing existing switches compared to flying leads Backup battery maintains your settings in the event of a power outage. Electrical Ratings: 120VAC 60 Hz, 15A General/Resistive, 1200W Tungsten, 1200VA Ballast,  HP, UL Listed.