Can't tell you more than I told you already
After upgrading my three mini Maglites and my Snakelight, I realized that what I really needed was a flashlight that could be really bright, but that you could also make not as bright if that was what was needed or if you just wanted the battery to last longer. Maglite actually has a multi-mode LED mini that you can find and which I wrote about more in my Maglite post.
After writing my last entry where I upgraded my Snakelight with a LED bulb that isn’t brighter but stands to last much longer on a charge, I did some more research (mostly at Candlepower Forums. It is crazy how much information is out there on flashlights. And it’s hard not to get caught up as people talk about new technology and fantastically bright flashlights. Also, you have to sort through a lot of posts some of which have outdated information and of course aren’t going to tell you about what the current state of the art is (until you figure out what to look for).
I have two mini Maglite flashlights that use 2 AA batteries (and a third that uses 2 AAA batteries). They are decent on new alkalines but pretty pathetic using rechargeable NiMH batteries which have more capacity but a lower voltage. They now have LED versions available for more more money ($19 at Amazon, $24 at Walmart). I thought about getting one of those but then passed. Also, in 2009 Maglite introduced brighter LED “multi-mode” flashlights that let you use different brightness levels, but these are not easy to find yet: my Home Depot has them (about $22), but not Target or Walmart. The multi-mode miniMag has two brightness levels (in addition to a flashing mode and an SOS mode) with the brighter mode being about 90 lumens.
The LED Mini Maglite is brighter than the old incandescent versions (which are less than $8), but there are upgrades that are even brighter. The Snakelight upgrade was made by Nite-ize and they make upgrades for Maglites too (as does Maglite). But that one gets poor marks too. Then there is a company called Terralux that makes upgrades. They are harder to find, but they have one version that is definitely brighter called a TLE-5 (using a Luxeon 3 LED) and another that is twice as bright as that called the TLE-5EX. The TLE-5 uses a Luxeon LED while the 5EX uses a Cree XR-E LED (though it has used Luxeon K2 and Seoul emitters in the past, so it’s hard to keep the information straight). They claim the 5EX is 140 lumens vs. maybe 10 for the incandescent bulbs.
Anyway, I got the upgrade in the mail today. It didn’t fit in my older Minimag (so old it says Brinkmann instead of Mini Maglite on it; later on I was able to sand down the edges exposing the aluminum base of the upgrade and I got it to fit), so that one will just have to go without an upgrade. But in my newer one, wow! It is really bright. You can’t look at it without probably damaging your eyes. It’s like a small spotlight. I’m very impressed. People say that because it gets very hot that it will dim some after a few minutes of use. Even on a fairly marginal rechargeable batteries it is just as bright. At 3 watts it would only last a couple of hours on a set of good batteries, but that is about the same as the original bulb which is much, much dimmer.
Here is a very informative review with tons of pictures of the TLE-5EX upgrade. They measure the light as being 16 times brighter than the original bulb.
A couple of weeks ago some bad storms blew through and my power was off for two nights. I had rechargeable batteries charged up, so I had two mini Maglites in candle mode (where you screw the lens part off) and also my Versapak Snakelight. The Snakelight is nice and bright (essentially it’s just a regular flashlight) but I thought it would be nice if they made a Snakelight with LED bulbs. Of course it would be nice if it was Versapak too, but they’re not making Versapak stuff anymore (not really true; I saw a Versapak screwdriver and batteries, including gold ones at Walmart later on). I looked and found nothing.
Tonight I was at Fry’s and saw some LED flashlights and I wondered if there would be a way to hack a Snakelight by taking a LED bulb and fitting it in to where the regular bulb goes. As I kept looking I found there were kits where you could upgrade a Maglite to LED. And then I found a generic LED upgrade that is just a bulb in the conventional flashlight bulb shape, but LED. It didn’t occur to me that it would be that simple (plus I’ve seen some Maglites with 3 LED’s which means the whole head is different). While the Maglite upgrades claimed to be brighter (and one added a strobe function), the generic upgrade only offered 5 times the battery life. Plus I don’t think LED’s ever burn out though I’ve had the Snakelight for 10 years and it hasn’t burned out yet. It was $8.99 but I wanted to try it anyway. A similar product is at Amazon for more money in a package that claims the light is brighter (it is a different bulb and really is brighter; see comment below). They also have the Maglite and other upgrades.
I brought it home, popped it in and turned on the switch. It is a much whiter (kind of blue) light, but I don’t think it is any brighter. I can’t say how much longer it stays bright on a charge, but if the old bulb would burn for two hours, this should burn for 10 which is pretty close to all night.