Detailed below is the Danlers range of Ancillary Products; sockets for plug-in ceiling controls and slave relays. The standard sockets are surface mounted for use on solid ceilings. Slave Relays enable to switching of 1 or 2 additional circuits (dependant on version) with its own supply. Examples could be separate low voltage circuits or corridor lights outside an office. Please check the load according to lamp type when installing the slave relays.