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HF-0.4 4-Digit 5A LED Drive Lithium Battery Charger w/ Voltmeter Ammeter DC to DC Module - Blue
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 is about 20V. Specifications 1.Input voltage range: 5~36VDC 2.Output voltage range:1.25~32VDC adjustable 3.Output current: 0~5A 4.Output power: 75W 5.High efficiency up to 96% 6.Built in thermal shutdown function 7.Built in current limit function 8.Built in output short protection function 9.Input reverse polarity protection: None (if required£¬ high current diode in series with the input). Specifications 1.Input voltage range:5-36VDC 2.Output voltage range:1.25-32VDC adjustable 3.Output current: 0~5A 4.Output power: 75W 5.High efficiency up to 96% 6.Built in thermal shutdown function 7.Built in current limit function 8.Built in output short protection function 9.Input reverse polarity protection: None (if required£¬ high current diode in series with the input).