Which Models Have Continuously Variable Brightness?
 

I saw one or two of these a few months ago, but don't remember which companies had them. Now I am ready to buy, but can't find them again. Can anyone help?

(Most lights have multiple brightness settings -- low, medium, high, for example. The ones I am looking for allow for a full spectrum of in-between settings, and for anything from very low to very high.)

Some of the DealExtreme flashlights I owned had continuously variable brightness.

http://lmgtfy.com/?q=flashlight+infinitely+variable