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DROK® Motor Speed Control Driver Board 10V-60V 10A 2016-02-08T20:58:34+00:00

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  • Mike
    February 8, 2016 at 8:58 pm
    Post count: 0
    #3172 Reply |

    I bought this unit from Amazon to use as a dimmer for led strip lights. Lights are rated at 12vdc, 4w / ft. I have <17 ft, so ~68w / ~5.7a. The unit will dim throughout the range for a while. After a few minutes at full power, the unit gets warm and the lights dim with the voltage dropping to 8 to 9 vdc.

    Is this unit defective?

    Drok
    Keymaster
    February 16, 2016 at 8:49 am
    Post count: 2971
    #3336 Reply |

    Hello Mike,
    There are two yellow self-recover fuses inside the module. Your problem may be caused by the over-temperature protection.
    Could you open the metal shell and find out the four tin points which are marked by yellow frame in the attached picture. Then connect the four tin points by soldering as the attached picture below. By the way of this, the fuse will not work. If you still want the protection function, you can connect the four tin points by a 5-6A fuse.
    picture_B00DVGGWC0
    Hope this will be helpful to you.
    If you have any questions, please feel free to contact us.
    Best regards

    Mike
    February 22, 2016 at 8:52 pm
    Post count: 0
    #3495 Reply |

    I made the modification you described above. Now the there is very little voltage change from full. If I rotate the knob fully counterclockwise until it clicks into the off position, the red LED turns off, but there is still considerable voltage seen on the output.

    Drok
    Keymaster
    February 23, 2016 at 4:02 am
    Post count: 2971
    #3500 Reply |

    Hello Mike,
    Thank you for writing in and your cooperation.
    There is three Field Effect Transistors in this product.
    As your description, one of them maybe broken.
    We are sorry for any troubles caused on you and all we can do to beg your forgiveness and try our best to make up your loss.
    Could you please tell us your order ID so that we can contact you as soon as possible.
    Beg your understanding.
    Best regards

    Mike
    February 25, 2016 at 7:36 pm
    Post count: 0
    #3513 Reply |

    Thank you for your assistance.

    Amazon Order# 108-1023775-3334635

    Drok
    Keymaster
    February 26, 2016 at 3:16 am
    Post count: 2971
    #3520 Reply |

    Hello Mike,
    We have contacted you via Amazon, please pay attention to it.
    Thanks

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