Z-Wave dimmer with energy usage measurements. The Lightkeeper is a "Switchkeeper Stripped" and a dimmer in one unit. With it you can, for example, turn a lamp at certain times of the day on, off or/and dim the brightness. In general, the Lightkeeper is placed on the floor, so that you can control him easily with the foot. Of course you can use it in the Housekeeper system, meaning to you can control it over the Internet, mobile phones and at the Housekeeper itself.