I was in a rush one afternoon and needed a torch for an indoor game in the pich black so popped into Wilkos to get one of those cheap rubber £3 jobbies. While there I found this:
http://www.wilko.com/bike-parts+accessories/wilko-bike-light-front-cree-led-high-intensity-black/invt/0342373
The torch is metal with a three mode click (and momentary) switch base cap, bright, less bright and strobe, takes x3AAA batteries. Its amazingly bright! in comparison to my Surefire clone its a much better light source, a bit bigger and batteries don't last as long but are cheaper to replace.
In all honesty for the price, the availability on the highstreet and its output this is the only airsoft torch I would buy again, it really is that good.
I cable tied it onto my rail the first time, some players tape them on, now I have it mounted to one of
these on my shotty.