I’m assuming this will fit the C8 and many S-series lights. 8A is suitable for the SST-40 and SFT40, but will likely be limited by forward voltage with most emitters.
5A is running a 519A, SST-20, etc… fairly hard, while 3A is a pretty average single-emitter light.
I ordered ten 5A drivers. I’m pretty excited about these. Anyone else bulk ordering and moving a lot of hosts over? Gonna build my first W1 S2+ too!