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DC-DC Buck Boost Converter Module 7-70V To 2-55V 600W/2-80V 700W 20A Adjustable Step Up Down Voltage Regulator

10PCS LM2596S DC-DC Buck Converter Adjustable Step Down Voltage Regulator Power Module

DC15V-90V to DC2.5V-72V 1200W 1500W Adjustable Step Down Converter Buck Power Supply Module Voltage Regulator Board

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XY6020L CNC Voltage Regulator Power Supply DC Adjustable Stabilized Constant Voltage Constant Current Step-Down Module 1200W/20A

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