BG Nexus Brushed Steel 2 Way Trailing Edge Quadruple Dimmer Switch NBS84 with 25mm Steel Back BoxBG Nexus Brushed Steel 2 Way Trailing Edge Quadruple Dimmer Switch NBS84 with 25mm Steel Back Box This trailing edge quadruple dimmer switch from British General allows you to control your light levels and set the mood. The intelligent electronic circuit monitors the connected load and provides a soft start with protection against thermal, current and voltage overload, and is suitable for dimming LED, dimmable CFL's and traditional lighting. Designed