Honeywell RPLS540A ECONOSwitch Programmable Timer Switch, White (Requires 40 W Minimum) Works with incandescent and halogen lighting replacing 2-wire single pole switches and multi-switch or 3-way switches. This switch requires a MINIMUM 40 watts and MAXIMUM 500 watts to function. This switch will not work with LED or CFL type lighting. Supply: 120 VAC, 60 Hz Programmable up to 7 programs per week. A program can apply to a single day or repeat every day. For each day of the week, you can choose: sunset /sunrise programming or schedule your own on/off time, or combine them  for example program the light to turn off at sunrise and on at midnight. Three operating modes: Conventional on/off or Manual, Automatic/Programmed, or Random. Sleek design mounts flush with standard decorative wall plates (not included).This model has as a large white backlit display with a night light mode option for easy reading in dark areas. Dimensions (HxWxD): 2.7 in x 1.7 in x 1.7 in