This is a single polished brass LED dimmer.
It is part of the Contour polished brass sockets and switches. The dimmer has a maximum capacity of 10 dimmable LED lamps or bulbs, with a total maximum capacity of 120 watts. They are push on/off dimmers. They are two way dimmers, meaning they can be used in conjunction with a two gang light switch (not a second dimmer).
If you're looking to use a dimmer on a 2 way system, 2 dimmers will not work together as this will cause a conflict in the circuitry. A dimmer will only work on a 2 way circuit if a standard rocker switch is being used on the same circuit.
Please don't forget that this LED dimmer will require dimmable LED lamps or bulbs to ensure it works correctly.
The V-PRO LED dimmer module used in this plate, also has different settings available. You can find out further information on the V-PRO module here.