Transformer is rated 3volts 1amp (around 40 LEDs) The transformer simply plugs into the switchboard giving the switched circuits. This module has been designed to power LED model railway Lighting. Power is supplied to the module via the DC socket or the terminal block on the end, then power is controlled by the toggle switches and outputted via the terminal blocks. This is an extremely versatile little module and it has many uses The can be used to power lights, accessories etc Provides power to 8x 2way, 5mm terminal blocks Power is controlled using the toggle switches The module can output power to 8 separate circuits Uses a DC socket or terminal block for power Designed and manufactured in the UK Uses a high quality, professional, double sided PCB with silkscreen layer The PCB is compact  – 120x22mm The PCB has mounting holes – PCB mounting pads are included.