6 Pack LM2596 DC-DC Buck Converter, QEBIDUM LM2596S Adjustable DC to DC Step ...

7 Pack DC-DC Buck Converter 3.3V 4.75V-12V to 3.3V Step Down Power Supply

6 Pack LM2596 DC-DC Buck Converter, LM2596S Adjustable DC to DC Step Down Mod...

DC-DC 5V to 1.2V~24V USB Step UP/Down Boost Buck Adjustable Power Supply Module

2 Packs Buck Converter LM2596 DC to DC Step Down Module, Adjustable Voltage R...

6 Pack LM2596 DC-DC Buck Converter, QEBIDUM LM2596S Adjustable DC to DC Step ...

3Pack LM2596 Buck Converter Step Down Module Adjustable Voltage Regulator DC ...

LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Mod