Persoanlly I don't get the whole, "buy an expensive flashlight with the most inconvient size battery you can find". I have mag lights. Multiple sizes, but I carry whatever the brightest 2 AA or AAA sized one the sell in lowes or HD is. there are 2 models i if I remember.. But they are bright enough to do whatever you need, batterries are cheap and u can buy in bulk or buy replacements in any gas station on earth if need be - and I won't cry or get pissed if it gets lost, left behind, or destroyed.. mine lives in a backpack i carry to work in the winter, and an EDC/work range bag when it gets warmer.. ive never "wished" i had something different.. also - some of these other small / insane lumen model lights that people buy for work or emergencies, only last a few hours - so if completey defeats the purpose of "it'll be there when i need it" type thinking..