Canister lights?

[ethanb]

While it's true that a good packing case will do much to protect the bulb during transport, it's still nice to have a rugged unit that can be abused without damage.  We tend to do not-so-nice things like crawling through caves dragging our gear in a bag behind us (bouncing it along the floor) or raising gear out of pits on ropes (swinging it against the walls).  This resembles hammering nails with it and throwing it against walls well enough that I think those are not unreasonable ways to demonstrate the lights robustness.

Ethan