One of these?...

http://www.amazon.co.uk/Lenser-8403T.../dp/B001H1WPEU

I was given one last christmas and they are really bright! There is a warning not to look into the beam of the torch, I strongly suggest you heed it or you won't be seeing much for the next few minutes! For someone such as I, who has a visual-impairment and poor night vision, this torch is an empowering revealation. I'd recommend it.