The little Fenix LOD will get quite warm using the 10440 cell on the high setting. I would only really use the high seting for only short periods i.e. less than 5 minutes at a time. The Stobe mode on high at 120 Lumen is powerful enough to be used to disorientate and distrupt night vision as a defensive option.
On the low setting the Fenix can sometimes give a noticable flicker using the 10440 cell. The medium seting is best though giving about the same output as the high setting using a Energiser Lithium Primary AAA (which are expensive single use cells). You should have no problem with the SOS mode, which is great for emergency signalling and should give over an hours use using the 10440 cell. I generally keep a spare Energiser AAA with the LOD as well simply because of the longer run time on low mode compared to the 10440 and is better suited for personal tasking with its lower output.

Ok, just the medium setting would be the best for long time use. Thanks Am_Fear_Liath_Mor.

I don't know. In any case, it would almost certainly be better to get one that runs on AA/AAA and put rechargeable batteries in it, and get a separate solar charger for those.

Crank-power has the drawback of many moving parts, plus you are usually just charging up a battery which has finite life anyway. Solar panels supplied with other gear are generally less competitive than solar panels sold standalone. Using replaceable AAs gives you the option to run on non-rechargeable if you need to, as well as all the rechargeable options.

This is one of the many reasons I like to get gear that requires batteries in AA. It's easy to keep spare rechargeable batteries strapped to my pack and swap out of something is getting low. And I can still grab regular AA if I need them.

And now out of idle curiosity you have me wondering if there is a small crank charger worth having

Mark

This charger is supposed to be pretty darn good. It is not cheap, though.

Thanks for the great review Falcon5000. I did not realize how small a light this was, until I saw the picture of one "in hand" on your post.

Today I ordered one as my new EDC (for when I am not working) from Fenix Tactical in Ontario who can be found here http://www.fenixtactical.com/fenix-l0d-q4.html

Mike