Thanks for the link - more expensive than I expected, but something to look
into.

"Keith" wrote in message
oups.com...
Here's a DC dimmer control, but it may not be suitable for weather
exposu http://www.newenglandsolar.com/catal.../catalog84.htm
A good tip... when you're looking at stuff for 12V electrical systems,
look at the solar power suppliers. They have tons of stuff since most
of their power is DC.