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: