Possibly the world's brightest keychain light - easy & cheap
Flashlights have been a hobby of mine for about a year. Of course, the very first question that always comes up when discussing (or showing off) any flashlight is - HOW BRIGHT IS IT?
Well, I have been carrying around a keychain light that absolutely pumps out the lumens like you can't believe. Here's a chart showing that it actually is over 300 lumens for a short period!
Now, contrast this to a 3 D-cell Maglite, which is rated at ~45 lumens and you can begin to understand what a HUGE leap in efficiency we have with this keychain light!
There are actually TWO keychain lights (each priced at $20 to $40, depending on version) that will give you this tremendous output. One is the 4Sevens Preon1 and the other is the iTP EOS A3. For either one, I would recommend getting it with the XP-G R5 emitter. If purchasing the iTP EOS A3, I would be sure to ask for the 'upgrade' model, which is 3 modes (lo med hi).
Both of these lights utilize a standard AAA battery for 'normal' users and will pump out a respectable ~80 lumens, but if you really want to juice up the light to the 300 lumen level, then you need to purchase a 10440 Li-ion battery and charger (readily available and inexpensive). It's the 10440 battery that is the secret to this massive power. :yup:
Hope this helps 'illuminate' your night! :rolleyes:
Legal disclaimer - Of course, like anything that is over-powered, there is a little caution that needs to be exercised. This light WILL get hot if used on max power for very long, and you need to be careful about discharging the battery too fast.