Porcelain Base Dimmer 
D60xP48mm
Traditional porcelain base dimmers and fan controllers with brass covers and knobs.
Look for LED dimmers with the /250 code suffix. HPM mechanisms.
Matching switches also available.
Product Notes
Dimmers and fan controllers are variable speed and require a switch to turn on & off. Dimmers are 400VA, suitable for most applications including low voltage downlights and incandescent lights. LED dimmers available.
All Tradco switches, sockets, dimmers and fan controllers use Australian made HPM and Clipsal mechanisms. 
TradCo