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  • Very good Powtech PT4115 based LED driver

    posted by Jondo76 on 01/19/2013
    2 0

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month


    - Can handle many LEDs in series.
    - Good quality PCB
    - Efficiency is high, measured 96% (25 V input, 24V LED output) without rectifier.
    - Uses Rubycon japanese capacitor
    - Analog or PWM dimmable (if you can solder small things)
    - Reliable, I have been running them for thousands of hours.


    - Not 40V as specified, the chip can handle up to 30V and the cap on the board is good for 25V.
    - The dim input on the driver chip is not connected, would be nice with a solder pad for this.


    The chip is ESD sensitive. Be careful with electrostatic discharge, especially on the DIM input.
    I have destroyed a few of them this way.


    Very good value

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