This is a screwless polished brass LED dimmer.
It is part of the Varilight polished brass sockets and switches. This dimmer is a one gang two way light dimmer. It can be used with up to 10 LED bulbs (lamps) with a maximum total capacity of 100W.
Varilight are the market leader in LED dimming. Their V-Ppr dimmer is optimised to give optimum LED dimming. Please note as this is a flat screwless dimmer plate you will require a deeper back box for fitting.