Three Convoy lights with 8A buck drivers for getting the most runtime out of 21700 size batteries. Purchased for $28-$38 each with batteries included I think these are an incredible value.
*white balance is not consistent
M21B with SFT40:
S21D with four 519A 2700k emitters and 60 degree beaded TIR:
S21B with Osram CULPM1:
Thanks! Since the S21B supports 22mm drivers (unlike the S21A’s 20mm) it has a few more options, although this config was by request in the order notes.
As for 8A buck drivers, nowadays they are available in 17mm (as you mentioned) 22mm, and 20mm as well which I’m hoping to try (maybe mao S21A with sft40?)