I swapped a Sofirn SP33S from 5000K low CRI XHP70.2 HD to 5700K 90CRI XHP70.3 HI today.
Since I did not want to desolder the original LED and keep my option to back-swap, I slightly modified a 20mm star from Simon to fit. It’s not ideal, but does kinda fit with 2 edges slightly filed off.
The original screws have slightly too small heads and don’t hold the PCB too well, but it works. Will replace with wider head screws at a later point.
Here’s some comparison pictures of the beam on a white door. All pics taken with 4000K white balance locked in the camera. The brighter spot in the upper left corner of the spot is an artifact created by reflections, it’s not actually present in any of the 3 beams.
SP33S XHP70.2 HD 5000K low CRI
SP33S XHP70.3 HI 5700K high CRI
Comparison: S2+ 519A 5700K dedomed
I guess I now know why sofirn never sold this light with 70.3 HI update… The beam looks kinda odd. I like the smaller hotspot and hence more throw, I love the fact that it is finally not green anymore. But those weird rings in the spill… Not ideal. Guess that was to be expected from using a reflector not made for this LED. Still hoped it’d be better.
The LED itself is awesome though - Simon got great tint-free and tint-shift-free cold high CRI 70.3 HI emitters.