The Good Choice 24-Hour Lighting Timer allows you to control the power to lights/devices up to 48 times per day. The timer features select "on/off" time ranges to accommodate your schedule. This allows you to control the power off lights and appliances down to the hour, helping you to manage your energy usage. This product is easy to use, includes a manual override and doesn"t have any pins to lose. The dimensions are 5-inchs by 4 inches and comes with a 1 year warranty. Good Choice products are uniquely designed and affordable, so make the right choice with Good Choice. Good Choice products have been awarded, "The Good Housekeeping Seal of approval".