Photo is for representation only. It isn’t an actual photo of the item.
So, I did the math. They have one that claims to be 570lm at test current. Test current is 350mA. Forward voltage is 11.3 volts. Claimed efficiency is 144 lm/w. Well, 11.3 X 0.35 X 144 = ~570 so it is accurate. I think 144 lm/w is pretty good. It just doesn’t look right at first glance.
The u4 is at 1200lm at 3A? Xpl at 1000lm at 3A? I’m still in the process of learning! :)So if I sound stupid it’s most likely because I am still not learned!
:) Alright things now get massively complicated (HI, HD, same die different packages, etc). I meant that the brightness of the XP-L HD V6 is almost the same with XM-L2 U4.
These are the official specs by CREE. Keep in mind the U4 should be 7% over the U3, so then the U4 is almost the same as V6. The is no reson to believe XP-L HD is an inferior LED.
Hopefully it is at least a 6V/12V LED like the other XHPs. It looks like a single die though, so it may not be configurable as such. A 11V+ vF LED isn't very useful for most of our lights, since you'd either need 3S cells or a boost driver with 1S or 2S cells.
Am I the only one who thinks, that Cree should focus on 3,xV LEDs?
I mean… 11V for sub 600 Lumens?
That’s 3-4 LiIons, so it will be a big light with little output.
Sure, Cree doesn’t make it’s LEDs mainly for Flashlights - but it’s a not so small part of it.
Look again. The sub-600 is only at the tested current of 350mA. It is actually rated to go as high as 1050mA and over 1500 lumens. With the guys around here, we’ll probably be seeing it going past 2000 soon enough. Still, requiring 11V to get there doesn’t feel right. 3S LiIon can certainly do better. :bigsmile: