Its a low output 5mm LED ~8-10 lumens that I modded it into a Mini Maglite 2AAA. Battery life extended 25x, more durable, but with the same output and the CRI is darn near the the same as when it had the incandescent bulb in.
Yuji sells a lot of ultra high CRI LED, COB, and other emitters, it may be even where your new install is coming from.