Up until last year i had four years of wearing head torches for work, every day all day, after a few cheap ones i ended up buying an LEDLenser which took AAA batteries, it was great, so much better than the previous cheap ones i'd tried, that torch is still going strong after 3 years and i've just bought another rechargable one, just as good! The big issue for you is that it has a battery pack, sorry. Another plus point is that it only has the elasticated band rather than having the strap across the top of your head, the simple headband is pretty tangle proof and doesn't need adjusting if you need to wear extra hats or over a hoody for example.