just seen this, bit pricey but may be worth it, especially where i live and all the unlit roads around my location
http://www.supertorch.com/en/index.php
http://www.supertorch.com/en/index.php
You can get the same zoomable light with the T6 emitter on Ebay for a few quid, which will be approx twice as bright:they look a bit big for my needs, i will keep looking, reason i was looking at the first one was size as it looks easy enuff to use as a bike light, the others are a bit big. ATM i am using 2 front lights
this looks ideal for my needs going to place order monday thanks