Smart Halogen twin set with lead acid battery & charger..

[Teuchter]

Used one through my first commuting winter 5 years ago and thought it was fine except had to make sure the battery was kept topped up. Replaced it with a Fenix torch and never looked back. I think I sold it for almost as much as I'd bought it for on eBay.

I must admit though that I think they look really cool.