To me, the e-Lite was a backup to the normal headlamp. I use a Princeton Tec Scout for main use in camp and such (I like the way the switch fits up under the little plastic tab when I stow it - no accidental turn-ons.) But I also carry a clip on PT Pilot light (not sure they're still available), clipped to my shoulder strap. It's handy for those times you need a little light for a few momemts (like looking inside the pack to find the main light at dusk, or when changing batteries.) And it's big enough to function as a main light if I should lose (and by "lose" I mean "step on") the headlamp. My headlamp, lighter, and filter are the only things I carry backup for (clip light, matches/firesteel, and purifying tablets.)