LED indicator, neutral wire required, HET06 - White. Countdown timer switch controls the on/off operation of lights, fans, air Conditioner and heaters according to the countdown time set. Replaces any standard wall switch and will fit with standard decorator wall plate. 6 preset countdown time options: 5, 10, 30 or 60 mins, 2 or 4 Hour; bottom button for re-set. Choose your countdown time based on needs and function. Blue LED indicator mode 1: Blue LED light flashes twice indicating setting success then stays off. Mode 2: LED stays on during the selected time delay. Depending on where you install the timer switch, you may or may not need the LED light on at all times. Energy-saving solution for bedroom, bathroom exhaust fans, bathroom heaters, sprinkle system, garage and laundry room applications. Bedroom fan timer switch replaces wall switch or spring wound timer, neutral wire required.