Our range of Colour Light Signals are not based on any particular prototype. The simple design results in a value for money product. Each is hand made so can vary slightly in appearance. The simple "Plug-IT" system requires no soldering. Power is supplied from a wall mounted transformer via switches, multi-way distribution and extension leads. A hole is required to "plant" the signal with access beneath required for connections. The signals can be controlled manually with switches (see below for wiring diagram) MANUAL SIGNAL OPERATION Switches and cables are available to order under the "PLUG-IT" section