TeOhk DC-DC Step-down Constant Current Regulator Module LED Driver Module Lithium Battery Charger Module Board DC-DC Power Module

Nice drivers, set to about 2.4 amps from supply so be careful. SMD soldering was good but all the through hole components were not soldered well. Some pins weren’t even soldered and others were dry joints.. these drivers are not useable unless you first fix the bad soldering. I have 7 of these now and all had bad soldering.