Looking for a certain dimmer switch

[Axsuul]

Hello, Im looking for a certain dimmer switch mainly to control my incandescent light lamps individually. I drew a picture of what I'm looking and I know that these exist but don't know exactly where I can find them. Any ideas?

Thank you for your time.

 

[Lectrician]

Standard 240v? No need to incorporate a transformer?

http://www.tlc-direct.co.uk/Products/VLYLST.html

 

[Axsuul]

Yes this might be something that I'm looking for. Thank you for the response, I now know they are called "In line" light dimmers

 

[Axsuul]

Actually these were what I was looking for: http://www.doityourself.com/invt/u528968

But what is the difference between this and the one you recommended or rather, how does the dimmer you recommended work?