From a quick gander at the listed specs,I'd say they're susing a Cree XM-L to get the output. And putting that behind an aspheric lens [which many people do, in order to get good throw; you end up with a projected image of the LED die of varying size depending upon the size of the lens. Aspherics's, however, are not very efficient, perhaps 50% of the light an LED produces makes it out the front.]
Waiven, as I recall staarted a thread here about a year or so ago, discussing there other "super throwers." Their key element seems to be their "light recycling collar," which is apparently meant to reflect light that would otherwise be lost within the head of a light [one that is utilizing an aspheric lens] back at the die of the LED, thus increasing surface intensity [which is how you get maximum throw]. IDK, honestly, how effective of efficient such a device is, but I took their claims with a grain of salt, as did many others posting in the thread.
Yes it does appear they are using the XM-L. They probably are thinking either wrongheadedly that more lumens equal more throw or they are going for the marketing aspect of being able to quote high lumen numbers and playing off the general ignorance of the populace.
John your statement about aspheric lights being inefficient while in one sense being totally correct is also totally wrong. First off I hope you don't feel I'm coming down too hard on you personally as I have noticed this "myth" repeated here ad nauseum from some of the more schooled people. The record does however need to be set straight. First off let me say that I am fanatical about good design. I'd say I probably hold closest to the design pillars set forth by Dieter Rams but I'd add that on my own personal list it begins with one thing.
Function. This should drive everything that follows. So you start off trying to figure out what function you are ultimately trying to achieve. To do otherwise would be folly as you would not have clear design direction. In this case we will assume the goal is to create the best LED throw light possible. Since the goal is throw every part of the design should contribute to this goal with as little in the way of compromise as possible. If advancements in efficiency happen to contribute to reaching the main goal then they are most welcome. If however the cost of efficiency (which in this case you are referring to throughput) means a reduction in the end goal then by definition it is right out.
Keep in mind there is more than one way to view efficiency. Packaging and materials, throughput(optical), source intensity conversion to beam intensity, energy. When it is said that an aspheric loses x% of light that is referring to throughput. When designing a light for throw throughput is one of the worst things you could use to guide your design. In fact if one was to put so much weight on throughput then we wouldn't even use reflectors or TIR lenses which lose 10-30% of the light themselves. The absolute best would be bare LEDs. Anything less then that and you are losing lumens. But then it really isn't always about lumens is it. Sometimes you need to see far away and the
only way to accomplish this will require the death of some lumens via various collimation methods. There is no reason to cry over the lost lumens as long as the end result meets the goal set forth.
The fact is that there is no collimation technique that can come anywhere close to what can be accomplished with a properly designed aspheric(except maybe an equally lossy high precision multi-lens setup). For any given current to the LED an aspheric will always throw more than a reflector or TIR of the same diameter. To put this another way- it would take far more power or far more size to create the same amount of throw as the aspheric. That means the aspheric is far
more efficient at converting the source into throw. That's right the aspheric is
more efficient than any other alternative. The loss of some lumens does not change that and is inconsequential.
If you needed to see super far away and you couldn't see what you needed to with your reflectored or TIR light the knowledge that you have a little bit more throughput is of little solace. And while there is nothing you can do to make that reflector or TIR light throw farther when you need it it is relatively easy to make a lensed light diffused. There is a reason for my preference for optics.