deejayspinz That's not a con.. It's expected. Just Google power conversion efficiency. There is always loss in any conversion process. If you wanted 12V out, then just connect direct to your 12V source.

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pesoft This is normal situation with such DC-DC converter you usually need to provide between 1V to 3V against wanted output depending DC-DC model

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banggood @atuldb10 Dear customer，

Sorry for the inconvenience.

You could send an email to our mailbox : cservice@banggood.com

We would highly appreciate if you could send us all the information listed here below:

1.Some photos of the shipping label, which can be found on the external side of the package;

2.The SKU number of the products you received. You can find this information on the label placed on the item itself;

3.Some photos or video to show the entity of the problem;

4.The order number and the product ID.

We promise to figure it out and issue a proper solution for you as soon as possible.

We will try our best to help you to solve the problem you met and issue a proper solution for you as soon as possible.

Hoping your kindly understanding,we wish you have a nice day.

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