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4.9 out of 5
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  • 06/11/2017

    Attenzione: Il COB non può essere collegato direttamente ad una batteria o ad un alimentatore da 12V perché non ha una resistenza interna per la limitazione della corrente. Per una corretto funzionamento può essere collegato a un alimentatore da 12V con in serie una resistenza da 8-10 ohm 2W oppure ad un alimentatore a corrente costante (ad es 350 mA). Con 350 mA la tensione ai capi del COB è di circa 9V e la potenza è di circa 3W.

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  • 20/01/2019

    в работе не проверял. продавцом доволен

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  • 27/01/2021

    Perfect.

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  • 21/01/2021

    I used these to repair a LED lamp and they work fine. Because I was in a hurry the first replacement I ordered from a portal but it died on the first day. These two from Banggood work fine and are still functional. Again I learned that it pays to wait a bit for the shipment.

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  • 13/08/2020

    very good!

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  • 07/08/2020

    Very bright and the power consumption says about 5W even at 9 volts - eventually rebuy this...

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  • reikamf
    ES
    25/06/2020

    Excelen te material, very good super recommended to adpt leds to old teams or with little spar

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  • 04/05/2020

    Everything's arrived in order!

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  • 28/03/2020

    nice price, very bright

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  • 04/02/2020

    All OK

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