Re: LED lights with
This has kind of already been said, but I wanted to emphasize the importance of the reflector to the overall throw -- and output in general -- from any light. Even the lowly TurtleLite II delivers more light than it really deserves to, mainly by virtue of its relatively large, faceted reflector. Don't get me wrong; I *love* both my TurtleLite II's! I just mean it runs with two Nichia LEDs, and has no business putting out the amount of light that it does... it even outshines the lights I have that use 3 Nichias, and the only real difference is that big faceted reflector.
I modded one of those standard Energizer flashlights for which the bulb slides out of the reflector to convert from flashlight to lantern. I dropped an EverLED into it, and WOW! /ubbthreads/images/graemlins/grin.gif MUCH better than I expected. It absolutely blows away any 1W Luxeon light I own except for my cherished LGI... and quite honestly, the modded Energizer has a nicer hotspot than the LGI despite the lesser light output. Again, the beneficiary of a huge, faceted reflector, plus in this case a small magnifier or partial acrylic ball built-into the polycarbonate lens.
Incidentally, I have some photos of this mod and will be posting them soon, perhaps later today if I'm not too lazy. /ubbthreads/images/graemlins/crazy.gif (It's Sunday after all!) It's embarrassing even to call this a mod in that it involved almost trivial work, though I did have to cut down some parts on the light a little.
I'm not an optical engineer, and I'm most certainly not the sharpest tool in the shed /ubbthreads/images/graemlins/confused.gif, but it seems to me that the quality of the reflector is crucial to long throw, even with LED lights, and the Mags that most modders use generally have very good reflectors. As far as smoothness of beam in general, in my experience the faceted reflectors smooth the imperfections one might otherwise see with Luxeons (due to quality control issues, misaligned optics, squareness of the emitter, etc.) and result in a truly wonderful light.
With apologies to James Carville, "It's the reflector, stupid." /ubbthreads/images/graemlins/smile.gif