My latest Convoy order showed up today. A red S2+ 18350 with SST-20 deep red, as well as an orange S2+ 18350 host. I put a 3V 5A buck driver and a FFL351A 1800K emitter in the orange host. Both red and orange were swapped to 20° beaded TIRs.
Soldering wires to a MCPCB with lead-free solder is a pain btw. The joints got so ugly 
Reflowing emitters on with lead-free paste however works really well.
Very happy with my growing Convoy collection 