A convenient small keychain LED light that has multiple uses:
*  Mark your gear and static hazards in the dark
*  Illuminate your eyepiece case
*  As an emergency red-light replacement for your headband light
*  Illuminate star charts
*  Hand out to guests who may not have a red light
 
These lights can be momentarily turned on by squeezing the light, or can be kept on by pulling back the little tag on the face opposite the Astro Shop logo.
 
Sold in packs of 4.