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This LM2596S DC-DC buck converter is an adjustable step down voltage regulator module with clear digital voltmeter display. It supports wide voltage input and can steadily convert high voltage such as 36V, 24V and 12V to low voltage output. With stable 2A current supply and reliable voltage stabilization, it delivers high efficiency and low consumption during long time operation. The real-time digital voltage screen helps users adjust output voltage quickly and accurately. Come with 4 modules per pack, perfect for electronic DIY, industrial power adjustment, vehicle power refitting and daily electronic maintenance.