Yes, there is. Singe AA is a pretty popular format. Fenix LD10. Quark AA. Nightcore. Budget lights such as Romisen, MG, ITP - just to name a few. Check out some previous posts of mine if you'd like specific recommendations for dealers.


As this thread shows, there is an abundance of lights of various battery configurations and brigthness/runtime options. I don't think you can go wrong with any of the good suggestions here.


One of the smallest and most versatile lights that runs on AA batteries is actually designed to be worn as headlamp or "clip on any place" light: Zebralight H50 or H501. My own personal favorite is not listed on their web page, but if you contact them they may still have some samples lying around. (H50b with a more "warm"-ish light output, which is more pleasing to my eyes, particular outdoors).