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3pcs DC-DC Boost Buck Adjustable Step Up Step Down Automatic Converter XL6009 Module Suitable For Solar Panel US$9.19 View It

Overall:

BG891056179 27/01/2021

Will bu used in the future with old PC-power-supplies for variable voltages. I have tested it with a power supply and measured the output voltage. The input was 7.2 Volts. I have used output at voltages of more than 25 V down to 1.5 Volts. The trimmer for the output voltage is extremely sensitive (10 turn potentiometer) so that the exact voltage can be set easily. The input voltage should be 5 Volt or higher for stable output.

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