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4.7 out of 5
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  • 26/09/2016

    Good product, well made, the same as in the photographs in the shop. Red LED. Thank you very much. I order the same thing. But one does not work. I plugged 2.5V to the input terminals and the led does not work - The USB output 2.5V General the great.

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  • 12/05/2016

    Unfortunately, the cards are not well made. Most he had the USB connector soldered bad. not compatible card with charging devices as iphone type.

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  • 21/10/2015

    Yo lo uso para proyectos donde manejo 2 baterías AA (3v) y tengo una salida buena de 5v, hasta el momento me a funcionado bien para proyectos basicos y no he tenido problema, para proyectos donde no requieres el USB es un poco difícil quitar el conector

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  • 13/03/2015

    The price-performance ratio for this converter is very good! They work well, if not too much damage to the ferrites of the coils are present. Because half of our delivery had more or less broken ferrites at the inductances. This of course can have influence on the efficiency. We will send a photo.

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  • 04/01/2019

    Excellent produit

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  • 19/11/2017

    llego un poco retrasado pero llego al fin y se ven en buen estado falta probarlos.

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  • 01/09/2017

    prodotto che rispecchia quello in descrizione

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  • 24/09/2016

    good , you can double voltage by using only 1.6v

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  • 05/12/2015

    I bought this item and is a Perfect item! must buy!

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  • 17/08/2015

    Package has not come sent 25 Jun 2015, has not yet come. today August 17

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