at first view the module looks good. Second view I was gutted abaout: 1. deformed pcb 2. the offset of programmed current and real current 3. the fan did not run, even by temperatures > 50°C at the heat sink There were not manual to compensate the current fault. Unfortunately I can not work with such bad quality. I would have prefered to send the module back to you, but the shipping costs is much more the the price of the module.