600W 25A Buck Converter DC-DC Step-Down Power Module 12V-75V to 5V19V 21V 24V 48V Adjustable DIY Buck Regulator Power Supply

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Mini DC-DC 12-24V To 5V 3A Step Down Power Supply Module Buck Converter Adjustable Efficiency 97.5%

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GREATZT 500W 18A Adjustable Power Supply Module DC-DC Step Down Buck Converter LED Driver 12-95V to 2-90V Voltage Regulator 12V

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12A DC-DC Power Supply Module High Power Low Ripple Adjustable 95% Efficient Step-down 5-40V to 1.2-36V

AC-DC Dual Output Step-Down Power Supply Module 85-265V To ±5V ±12V ±15V ±18V ±24V Overload Short Circuit Auto Recovery Protect