This is a 400W polished brass dimmer switch.
It is a Contour polished brass 400W push on/off dimmer switch. It is not suitable for LED dimming, but there are LED dimmers available in the same range. This switch has a maximum capacity of 400 watts. The plate is made from brass with a polished brass finish.
It is part of the complete range of Contour polished brass sockets and switches from G&H Brassware.
If you're looking to use a dimmer on a 2 way system, please note, 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.