12V to 5V USB – New Item
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18V 12V 9V DC to 5V USB : MOBILE CHARGING CHARGER FAN FRIDGE LIGHT MASSAGER
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This sale is for a circuit which can be used to step down an 18-22V DC input from a solar panel OR a 12V DC output from a battery OR even a 9V supply can be stepped down to 5V USB….sale is for circuit as show in picture 1….the second picture describes applications….
With a 12V battery we could use it for –
USB fridge (8W
USB Fan (4W)
It has reverse current polarity protection so will not get damaged to connect it to the battery in a wrong manner….the heat sink gets quite hot on high loads like USB fridge so you will receive it in a plastic box with holes to allow air circulation….
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