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  • 04/05/2021

    Hola. Hola. Ya tengo una tarjeta de reglas no todo el voltaje. BAD 👎 👎 ....... salida de 40v = no toda la entrada de 20v es mala. Salida de 30v 5a = no todos los 0,67v de entrada . todo no es bueno

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  • Arnoldo
    DE
    06/09/2021

    buen convertidor de DC a DC para mi batería ibike. para la transformación de la tensión de los paneles solares

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  • 16/06/2021

    I build 12V charger for my e-scooter so i can charge from car or solar. 12V input and 42V output, max current is around 1.4A , i setup for 1A charge so current consumption is about 4A from input.

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  • 31/08/2021

    Comprobar que se ha realizado

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  • 23/08/2021

    artículo OK, función también ok

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  • 13/09/2021

    works well with my 12V Lipo and with 42V output

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  • 13/12/2018

    400W DC-DC High Power Constant Voltage Current Boost Power Supply Module its good and working well. good for COB chip LED. both current and voltage adjustable

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  • 23/12/2018

    no problem.

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  • 11/09/2018

    Damage Product not in Working condition. The potentiometer is not working the in put is 9V and out put is not going more than 2.5 V.The out put voltage is not stable every time fluctuating volt I hav update the picture of this item. packing is not good just wrapped up. please advise what to do with damage item. please help or advice me how to Repair or fix this damage item. where is the service center please provide Details. Tracking information is good and accurate Thankyou to Banggood Team.

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  • 03/07/2021

    Very good quality and works as expected. Only problem i had was the connector terminal screws were extremely tight requiring way too much force to get them to turn. After turning them a few times they loosened up. Just some quality control needed...

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