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4.86 out of 5
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  • 04/05/2021

    hello. i already have a rules card not all voltage. BAD 👎 👎 ....... 40v output = not all 20v input bad. 30v 5a output = not all 0.67v input . all not good

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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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  • Arnoldo
    DE
    06/09/2021

    good DC to DC converter for my ibike battery. for solar panel voltage transformation

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  • 31/08/2021

    check Tobe done

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  • 23/08/2021

    item OK, function also ok

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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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  • 14/05/2024

    Certainly requires active cooling, measured around 10% loss.

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  • 19/01/2022

    Fast delivery add good quality.

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  • 05/11/2021

    Pretty fast deliverey, first optical impression the module looks well build and has a thick windings coil mounted. The heatsinks needed some filing off the sharp edges. Board not tested for its operation capabilities yet. Thanks Banggood . Bye, Hans

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  • 13/09/2021

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

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