10pcs Automatic Protection! DC 4.5-40V To 5V 2A USB Charger LED Step-down Buck Converter Voltmeter Module Low Power

10pcs Automatic Protection! DC 4.5-40V To 5V 2A USB Charger LED Step-down Buck Converter Voltmeter Module Low Power
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sku: 32874478012
$17.40
Shipping from: China
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