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5Pcs XL6009 DC Adjustable Step up Boost Power Converter Module…
DSN6009 4A is a high-performance step-up switching current (BOOST) module. The module uses the second…
9V 12V Battery Discharge Excessive /Anti-over-discharge…
◆If there are no special circumstances, your product will not be delayed in arrival.
5A DC-DC adjustable step-down module XL4015 + a voltmeter 4~38V
11 、Input reverse polarity protection: None (if required, high current diode in series with the input).