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DC-DC Step-Up Buck Converter, Lm2596 Power Module 4-35V to 1.25-25V Continuously Adjustable : : Business, Industry & Science

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Dc-dc Adjustable Step-up And Step-down Power Supply Module Boost And Buck Voltage Converter Lm2596&lm2577 5-25v [ 5pcs/lot] - Voltage Meters - AliExpress

DC-DC Adjustable Step-Up and step-down Power Supply Module boost and buck voltage converter LM2596&LM2577 5-25V [ 5pcs/lot] - AliExpress

DC-DC converter module Step Up / Step Down 4-35V - adjustable 1.25-25V - Kamami on-line store