XHP70.3 HI R70 vs. R9050 (5000K)

As Simon said it’s binned LHP73B-B0-3B-J4-VU, so “3B” color area, above BBL.

I think this is true for custom variants of the emitters, while 5000K, 6500K (5700K) of LHP73B and 6500K (5700K) of LHP531 were purchased in their usual “configurations”.