12V high-power switching power supply board step-down regulator module #E9*

60W Voltage Converter Constant Module Step Power Up / Down #E9

DC-DC 12V/24V to 5V 5A 25W Converter Step Down Power Supply Regulator A #A6-22

10PCS LM2596S - 3A Adjustable Step-down Power Supply Converter Module #E9*

1PC B30 LTC3780 Automatic Buck-Boost 12V24V Regulator #E9

1PC LM2596 DC-DC adjustable step-down Power Supply Converter module #E9

LM2596 LED Driver - Step-down Adjustable CC/CV Power Supply Module #E9*

LM2596HV - Adjustable Step Down Converter Power Module #E9*