5A CC CV LED Antrieb Lithium Ladegerät Power Step-Down Modul mit USB mit Hülle
Product Description Highlights : 1.Module with crystal shell, safer and more beautiful. 2.Contains the voltmeter, ammeter, power meter, USB interface for charging the digital products. Note: 1.When you use the product, the module inputs and outputs to be isolated from ground. 2.USB output voltage is consistent with the module, not a fixed 5V output. When charging for digital equipment, make sure USB output voltage is 5V. 3.Some customers report: “The module can not adjust the output voltage is always equal to the input voltage.” When you encounter this problem, please counterclockwise rotation of the “voltage potentiometer” 10 laps or more, then use the module you can adjust the output voltage. Because the factory default output voltage of about 20V. 4.Shell assembly is very simple, but ".
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