Is there a reason I haven’t seen a manufacturer using a Luxeon V in a light like this? It copes with the high current better and has beautiful tint even though it’s not hi cri surely it would have made a reasonable choice for the E01? Or am I totally wrong?
I bet it has something to do with it’s odd 4mm x 4mm foot print. Most leds use either 3.5mm or 5mm. You need a special mcpcb to fit the Luxeon V. If you fit it by hand you might be able to get it on a 3.5mm pad, but it’s tricky. Maybe too tricky for mass production.
Fair enough, but a manufacturer could surely make the correct mcpcbs or get them in? Oh well.
Flashlight companies (most, not all) just focus on the main parts like the body. Things like reflectors, drivers, switches and mcpcb come from specialty manufacturers. Then the flashlight company assembles the parts.
Right now I only know of one store, LED4POWER, that has had some 4x4 mcpcb made up to sell.
It’s pretty odd there aren’t many factory flashlights with the Luxeon V. Maybe it’s not a cost effective led compared to it’s competition? IDK. We’d probably need to ask a flashlight company to really find out. It might be something as simple they are hard to buy in bulk in China. Or maybe the nice tints are hard to get.
What I'd really like to know is why the SST40 is so popular, when I consider the Luxeon V better in every way excepting the 4040 footprint.
That’s sort of what i’m asking too 
Any one have any beamshots or the osram emitter? Trying to get a sense of the throw to flood ratio in the beam. It might be too extreme… I hope it’s balanced.