I read that those lines on the die are called current-spreaders.
Scaru, a couple quick things.
–92CRI 219s are ~4500k, rather than 5000k.
-the XP-E output versus drive current graph is for a green XP-E. I recommend making a note of that in your commentary.
-XR-E typically has a higher forward voltage than newer LEDs (namely XP-G, because Cree recommends both emitters are fed a max current of 1.5A) for the same drive currents. At higher drive levels, the XR-E’s Vf increases dramatically compared to the XP-G because the latter is more efficient (a lower Vf yields lower wattage at the same forward current).
Thanks for all the compliments guys, I figured this would be a good thing to have so I made it. This along with the tint, brightness bin, CRI thread ought to cover most of the newbie questions about LEDs.
I just wish there was something like this when I joined up. ;)
Most of them that Illumination Supply has been shipping lately seem to be in the 4000K-4200K range. Units from earlier batches measured in the 4400K-4500K range. Looks like Nichia users get to play the tint lottery along with the Cree users.
Oh wow! This is just the sort of thing I’ve been looking for to get my head around the model numbers. The only other thing I would like to see if possible is the data for SSC P7’s or any other model they do worth looking at.
Updated some of the info on the Nichia 219s. As rojos pointed out not all Nichia 219s are Hi-CRI, only the H1 type. Due to this they are only available in bins up to B10.
If I can find enough info on the SSC-P7 I will add it.
Epic job Scaru!! Cheers man!
The S2, S3, binned Cree XPG were unavailable when they first appeared because,
FourSevens (4Sevens) bought all the production!!!
i`m sure i read that the Seoul Semiconductor P7 is now discontinued…
………………. SSC Z7
….Merry Christmas Folks!