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Lithium Battery Charger 4.2V 8.4v 12.6V 16.8V 21V 25.2v 0.5a 0.8A 1A 1.4a 1.5a 1.8 2A 3A 18650 Desk Lamp Flashlight Power Supply

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Flashlight Driver Board Touch Switch Integrated Charging Discharging Module Type-C USB C for 18650 21700 Battery 10W LED DIY

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