Kinda like the whistle, temp, compass, mag. glass combo at wal-mart for $6, just with a light. That's one advantage of seeing one before you buy it, Half the compasses are off, so you take a good compass next to it and see if they both point in the same direction. Then you can buy the "cheap" combo item. I have several of them as they make pretty good back-up redundency items.

Charles