The stylus is the single most practical and convenient flashlight I have ever owned. It is so small that you can carry one just about anywhere. I have used these lights for everything from looking for keys dropped under a couch to map-reading in my car and even as a supplemental light on search and rescue missions. The green light is plenty bright, and in many respects better than the white light version as it won't hurt your night vision -- and won't bother people if you turn it on at the opera to look at the program.