Well Sylvestor, per my previous post, to your advantage is to get a light that uses the same power source as you are currently using. This would make it the Arc-AAA, but you are looking for something brighter. Well I think that the Arc is brighter than your single AAA mag, but it does have a different beam pattern. I has a wider bright center that is not distorted. It is very usable up to 15 feet and can light up an area over 3 feet in diameter (and this is only the bright area) at this distance. The total area lighted is about 6 feet in diameter at this distance without any distortion.
If you want the light to throw it's beam, then maybe the PAL Gold or the modified Pelican would be better options. But remember that to do this, the beam must be focused very narrow (almost laser like). I posted something on this in another thread as I didn't think lights with very narrow beams were of much use (my opinion). The only application I can see a desire for this is in underwater use, where the light falls off very fast. I didn't think that you would be using your keychain light underwater. In fact, isn't the light from your AAA mag focused in this manner? If it is, maybe you have your answer alread at hand.
It is a matter of discussion if an LED light can throw it's beam as easily as it's incandescent counterpart (this is what they do best). In my opinion, LEDs give a much more usable light. In many cases, it is not narrow focused (very undesirable) and not too wide angled (would make the beam too weak), but just right.
