Looking through my stash of LEDs and found that I have what I believe to be 10 XPG2 S3 LEDs, but they could be S4’s.
Watt are the real world worthwhile mod differences between the two?
S4 is a higher brightness bin than S3.
Nice find, n10sivern. 
Yes of course butt to your experienced eyes how much brighter? How noticeable? I only have S4’s is why I ask. Also I assume same dedome results.
It’s only one step higher, so i think there’s little difference by eye.
S4’s tuff to find nowadays so S3’s may be realistically for most mods just as good enuff in a pinch.
https://intl-outdoor.com/led-xpg2-c-107_137.html
S4 brightness bin.
But, they’re not the old ones with the lower Vf.
The ones I have are the old ones. From 2016-2017
So… watcha gonna build/mod with those?
I dunno yet. Dedome and risk losing some or keep them as is? I haven’t decided yet.
There’s really no point to them unless you dedome.
Even dedomed, there are better LEDs for high intensity now that don’t require dedoming and don’t have bad tint.
Yeah butt they’re old school funky cool medina. :laughing: 