@WilliamRamsey My understanding is that 24v would be more standard and has some advantages over 12v https://www.waveformlighting.com/home-residential/advantages-of-a-24v-led-system-vs-12v
@WilliamRamsey There hasn't been as much experimentation with 24v fans
@mark_ungrin suggested the Sunon MF92252V1-1000U-A99 which looks good and inexpensive for scaling to many fans. I haven't tried these yet, curious about noise levels at different voltages https://twitter.com/Mark_Ungrin/status/1620215377044336642