I use a tesco 3W torch with a headstrap made of a loop of inner tube. Only started using it recently, I find it very useful for alerting drivers who look like they're about to pull out on me. It chews up batteries, though: ~ 3 hours run time on a pair of duracells
I tend to turn it off when waiting at junctions just to avoid dazzling random people as I look around
I tend to turn it off when waiting at junctions just to avoid dazzling random people as I look around