I used the Led Lensor MH7 as described by Chris, and was very happy with it. I have used extreme lights on my bike for years but they are not robust enough - I am exploring other options especially after the battery issues I had this year.

I use the Black Diamond mitts - with a pair of thin long fingered gloves or thermal liners underneath. Works really well - the mitt section can be flipped back and secured with a press stud.