Re: Good flashlights no one\'s heard of
Great thread! By CPF standards I'm not sure I can offer anything either "good" or "unknown", but let me mention two things anyway: the InReTech and the Starlite.
First, for 2AA M*g replacements, people here seem to love the Opalec Newbeam (three 0.1W LEDs), but I've wondered why the InReTech (one 1W LED) doesn't get more notice. It gives a nice bright light, is still running pretty strong at 6 hours when the M*g has quit, and was still giving useful light -- enough to walk on a snowy trail -- after 60 hours (it was a controlled experiment, time-lapse video and all). That's on alkalines. InReTech claims it's both brighter and longer-running on lithiums; I've only verified the first half of that claim. Mine has a blueish beam, which I rather like. This is what I have knocking around in my car's glove compartment (with lithium AAs): good enough, cheap enough. On fresh batteries, it's as bright as my Arc LS (measured on a meter), but it is unregulated and dims down quickly.
http://www.inretech.com has links to reviews and tech specs. (The tech specs worked for me only in IE, not Mozilla.)
$25, only from InReTech.
The lack of regulation is my only complaint about the InReTech. My second item is the opposite. In fact, the direct-drive InReTech is incapable of running its batteries down too far, and a pair of batteries that's completely used up InReTech-wise is fresh in a Starlite.
The Starlites are cheap and cheerful flashlights, selling for -- I forget -- like $7. They use a "bulb" (standard bayonet base) consisting of a single 0.1W LED and an integral DC-DC converter. (For $7. I was amazed.) They run 24 hours on 2AA batteries with no dimming at all, and carry on a lot longer. Of course they're not super-bright to begin with, but compared with your average M*g with somewhat aged batteries and bulb they're not bad. The beam is too narrowly focused for many tasks, and is quite uneven, but nicely white and ... hey, what do you want for 7 bucks. Oh yeah, they're made of brightly colored plastic. In short, a good toy, or kid's flashlight, or knockaround multi-use flashlight, or gift introduction to the amazing world of LED flashlights. Or put the bulb any 2 D-cell flashlight and run it forever (not that I really see the point).
Starlite has two flavors of flashlights -- 1 AA and 2 AA -- and their bulbs naturally have two different DC-to-DC converters.
References:
http://www.dansdata.com/ledlights4.htm
http://ledmuseum.home.att.net/starlite.htm
$7 only by sending a check to the San Francisco address given on both these sites, but the service was quick and friendly.