My flashlight stash has been decimated by kids losing them and giving them away to friends. I bought this pack just yesterday at Sam's Club for twenty bucks. They WILL light stuff up and are much handier than the 6 volt lanterns you're hauling around. I can't speak for longevity. They take AAA batteries (3) though, and you can find them anywhere.
http://www.samsclub.com/sams/led-flashlight-3-pack-with-batterie/prod11770317.ip?navAction=i use the same things around the house. I do have a glock 21 with a light on a rail, can turn it off and on, or it is touch activated as a night stand gun. I could never find a holster i liked for it. And I don't think i like the light on it that much anyway for a variety of reasons. It's there so if something makes it into the bedroom and avoids killing themselves tripping over the dogs i can light them up. But i have never liked providing an aiming point for someone.
