I was looking at the ten dollar "Larry lights" at an auto supply store, which are like penlights with a 60 lumen array of LED's on the side to use as a work light. Then I searched Amazon and found this "Cliplight." I don't own it and can't speak for it, but reviews are good. Uses 3 AAA batteries and provides 140 lumens and has a magnet on the side. Seems like it could be useful to clip to the pocket or collar of your T-shirt. Downside is that it does not seem to have a low or medium setting. Anyone have experience with it?