There are two formats of LightSwitch switches: single and combined ones.
A single LightSwitch consists of a LightCore relay and a SoloButton touch-sensitive panel.
A combined LightSwitch consists of several LightCore relays and touch-sensitive panels (CenterButton and/or SoloButton). Panels and relays are installed in one Frame with the appropriate number of seats.
The side touch-sensitive panels are installed on the right and left sides of the frame, and the central touch-sensitive panels are in the center. For example, two side panels and one central panel should be used for three switches in one frame.