My old NightSun dual beam headlight finally blew its 20watt bulb. It looks to be a standard MR-11. In reading through the various Geek/Light threads many folks praise the Solux bulbs for their whiter temp light. I cannot seem to find a Solux in MR-11 size. Do they exist? Where do I get one? Does anyone know if this will work with my current NightSun? Its a standard 12v system. I am assuming it will draw more and drain faster, but I have more than enough juice for my daily commutes.

Appreciate any help.