Heavy Duty 7 Days Digital LED Light in Wall Programmable Timer Switch and Cover Plate - WHITE PROGRAM UP TO 18 ON / 18 OFF SETTING OPTION ***** HET01-3R ***** AUTOMATIC OR MANUAL OPERATION ; NEUTRAL WIRE IS REQUIRED LARGE, EASY-TO-READ DIGITAL DISPLAY, TO-THE-MINUTE ACCURACY INTERNAL BATTERIES SAVE THE TIME AND PROGRAM SETTINGS FOR 3 MONTHS WHEN THE UNIT IS UNPLUGGED OR THERE IS A POWER OUTAGE CONTROL INCANDESCENT LIGHTS, FLUORESCENT LIGHTS, FLOOD LIGHTS, STEREOS, OR APPLIANCES SUCH AS AN AIR CONDITIONER