The general wireless DAY / NIGHT command is extra flat, it is installed on the surface thanks to the supplied adhesive strips and it can be changed in position. It is suitable to be installed in a universal box using screws (not supplied). It is installed near the entrance door to control the different scenarios of the home (Day / Night) that include lighting, blinds and power bases. The default "DIA" scenario activates all power bases, while the default "NIGHT" scenario turns off all lights and lowers all blinds. Custom scenarios must be configured in the Legrand Home + Control application. It is included in the Starter Pack and can be purchased separately, to add more command points if the house has more than one front door. It is powered by a 3V CR 2032 button cell battery included Standby mode: 8 years - LED indicator for installation and low battery (flashing red)