Years ago I had a AAA mini pocket light(I still have it, a blue one) with the Xenon bulb which finally burned out. I carried it in my pants or jacket pocket everywhere. I tried to get a replacement bulb but was unable to do so. For me they are a bit pricey, but the blue one was worth every nickel It saved me in the theaters and at keyholes and various other dark places. It has no buttons or switches and I can turn it on and off with one hand. They are very well constructed and very rugged If you want a small pocket companion to light up your darkness, you will probably be unable to find a better light.

They are excelentes!