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Mini dc-dc 12-24v to 5v 3a step down power supply module voltage buck converter adjustable 97.5% 1.8v 2.5v 3.3v 5v 9v 12v

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Dc-dc 5a digital led drive lithum battery charger module cc/cv usb step down buck converter with voltmeter ammeter

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Dc-dc 5a digital led drive lithum battery charger module cc/cv usb step down buck converter with voltmeter ammeter

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Dc-dc 5a xl4015 digital led drive lithum battery charger module cc/cv usb step down buck converter with voltmeter ammeter

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Xl4015 high power 5a 75w dc-dc adjustable step-down charger module step down buck converter led driver with red voltmeter

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