Dimension Screwless
4 Gang 2 Way 300w iQ Mains & Low Voltage Dimmer Switch
Piano Black
IQ INTELLIGENT DIMMER SWITCHES
These IQ dimmers are microprocessor controlled and benefit form the following features:
They fully comply with European safety legislation (BSEN 60669-2-1) 
and handle overload situations by stepping down its output to the lamps until the load is reduced. 
These dimmers are suitable for all applications requiring a leading edge dimmer. 
The output from the dimmer switch is extremely gentle on the load and they are soft-start, thus extending lamp life considerably.
These dimmer switches are suitable for many types of load (subject to lamp/transformer manufacturers guidelines). 
They can be used for:
Incandescent GLS lamps
12V Dichroic lamps (best with Telco premium low voltage transformers)
Mains Halogen lamps (GU10 etc)
Varilight dimmable low-energy CFL lamps
Wire-wound transformers
One dimmer for either mains or low voltage transformer loads