Don't know anything about their previous drop-ins. The second picture in this post shows the 219A left and the 219B right. The dome of the 219A is smaller and rounder, the dome of the 219B is shallower, much like a XP-G. The base is also a bit different, the 219 A has a black triangle and black spots at the side, the 219B has only the triangle:
I am still confused about which 219B is which, Illumination Supply had supposedly the best tint and bin of the new Nichia219B 4500K 92CRI, but Kaidomain also showed up with some new Nichia 219B's, with mistakes in the type nrs. IS was directly sold out, I ordered the KD one, and also a 5500K (non-highCRI) one. These are my tests. The subjects (the first two are the same led type): [image] In the description further in this post I just stick to the type nr. of Kaidomain, I will update if I kno…