@ Petelele: Sofirn C01 with Yuji warm white has been discontinued. I don't have any information if Sofirn is ever going to produce the C01 with a 5mm LED again. Maybe they could try using a different 5mm but my guess is they prefer to be using high power LEDs like SST-20 as in C01S only.
If you are interested in a red light AAA flashlight, please check this thread. https://budgetlightforum.com/t/-/58847
This is however neither HighCRI nor anything around 3.000K CCT. Maybe Sofirn could consider using SST-20 2.700K 95CRI for their next batch of C01S. There are plenty of nice options for this great AAA flashlight host.