Summary:
8% increase in lumens per watt (max bin on datasheet is S5 vs S4 for Gen. 2)
Slight decrease in voltage requirements (~0.1V less at 1.5 amps (both at 85°C)
25% lower thermal resistance (3°C/W vs 4°C/W)
Wider spatial distribution (125° vs 115°, suggests larger emitting area to me)
More lm/W is always very interesting. I like also that it says to have 90CRI versions in all colour temperatures, that alone makes this a great led IMO.
From the provided picture: almost all leading led manufacturers now use this way of applying the phosfor: after the assembling of the led. This could mean trouble for dedoming But who knows Cree comes out with a HI version of the XP-G3 soon, not the throw of a real dedomed led, but at least the next best thing.
Well it looks alot like the old XTE emitters, if it performs like that its definately not desinged for flashlights, yet i could be wrong, we`ll see soon enough
And off of that… If there is an improvement to lumen density, then it’s a better thrower. An increase in die size couldn’t hurt anything, so it becomes a non-issue.
I compared dimensions of both the XP-G2 and XP-G3 from cree data sheets and their dimensions are identical. However, die size itself is not mentioned anywhere.