This is way more light than I need, and way more money than I have.
But I want to congratulate Spark on a genuinely innovative reflector design.
Putting the emitter at right-angles to the beam and putting each one inside its own segment of a parabola is really clever.
It reminds me of the microwave horns that used to dot the landscape of the USA when ATT had its long line system--Hogg horns I think they are called.
http://upload.wikimedia.org/wikipedia/commons/5/5a/Hogg_horn_antennas.jpg
That's a great way to get more of the center of the emitter shining into the root of the parabola, as opposed to the now-current design where the parabola only collects light from the outer edges of the emitter.
But it's less extreme than the reflex design, i.e. with the emitter facing backwards, and it may be able to do a better job on cooling (which is the biggest problem, to my mind, with the reflex design).
I'd like to hear more about the cooling, though. You've got 5 XML's on a protrusion not much bigger than my finger-tip. I hope they are all bedded in solid copper or the like, to move the heat back into the body. Maybe soon we'll go to heat-pipe technology?
So in any case--I will never buy this light. But I think it is doing some genuinely new and interesting things. Bravo Spark!
(Oh, and I am not saying that I would not review it if you sent me one for free!)
