This is a two gang 400watt satin chrome dimmer from Vairilight. 

It is a double dimmer on a single switch plate. Each dimmer has a chrome dimmer cap and it is fixed to a single satin chrome dimmer plate. 

Type: Dimmer
Sub-Type: 2-Way Push Dimmer
Finish: Satin Chrome
Wattage (max): 400W
Gang: 2
LED Compatible: No

Code: HN83
Dimensions: 90Lx90H (mm)
£22.66 (inc. VAT)