Originally Posted by
ItsJustMe
I'm completely sold on 18650 LiIon cells for flashlights. The difference between those ans AA cells is astounding, and they're less trouble than CR123A rechargables. Whatever you do, you're going to want rechargables anyway.
I agree on the MagicShine thing - the battery can go absolutely anywhere, it'll strap on any tube on the bike or go in your pocket with an extension cord (though I'd only use that if I helmet mounted).
+1 on 18650's - once you make the small $$ investment in a few cells and good charger - you have so many better lights available to you.. If you are not sure a good transition light is the romisen flood to throw - about 200 lumens OTF - not super bright but it takes a variety of cells.. AAA - CR123 and 18650's..
http://www.shiningbeam.com/servlet/t...8-II-R2/Detail
If you decide that you can go 18650 then the MG P-Rocket is good blend of brightness and runtime.. 400+ lumens and 2 hour runtime on high.. Both these lights work fine with lockblocks too.
lockblock:
http://cgi.ebay.com/ws/eBayISAPI.dll...#ht_1234wt_907
http://www.shiningbeam.com/servlet/t...-rocket/Detail