Saik SA-9 upgrade

Well, I’ve been reading testing two of KD’s new Nichia 219b leds (4500K’92CRI’ and 5500K) EDIT: not convinced of 92CRI, see #23 more or less.

Now I want one of those Nichia CRI92 NVSL219B-E R85 B220 LED 14.5 x 1mm Star
I love the perfect CRI of incans, and it is something I miss of leds.
BTW, they sell two variants of PCB (1mm and 1.5mm of thickness). I wonder why, anyone knows?

Cheers