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LED Lamp Flashing Issue: Need 23-46V, 350mA LED Driver Replacement, Capacitors Fix Failed

mmario32 6021 8
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  • #1 16874689
    mmario32
    Level 14  
    Hello. I have an LED lamp which started flashing after about 15 minutes. The reason is most likely the power supply (because what else).
    Replacing the capacitors at the output did not help.
    I wanted to buy such a power supply, but cannot find the same one.
    Will there be a power supply with a voltage of 23-46V, 350mA? Because I found one.
    LED Lamp Flashing Issue: Need 23-46V, 350mA LED Driver Replacement, Capacitors Fix Failed LED Lamp Flashing Issue: Need 23-46V, 350mA LED Driver Replacement, Capacitors Fix Failed
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  • #2 16874763
    Freddy
    Level 43  
    After all, you have the parameters of the power supply written on the housing.
    Which exactly capacitors did you replace?
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  • #3 16874765
    yogi009
    Level 43  
    mmario32 wrote:
    I wanted to buy such a power supply


    So what is it ? A colleague requires a fortune teller, because it is impossible to diagnose the problem with this residual information.
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  • #4 16874779
    Freddy
    Level 43  
    yogi009 wrote:
    So what is it?
    As he was, it's not hard to guess :)
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  • #5 16874797
    mmario32
    Level 14  
    I changed electrolytes 3 pcs. on the 100uF / 63V output.
    The power supply I wanted to buy is:
    MPLC-16-350 23 ~ 46V @ 350mA 16W IP20 power supply.
    I do not provide the link because the administrator will be angry :)
    Or
    MPLC-16-250 23 ~ 46V @ 250mA 16W IP20 power supply
    Either 50mA with a lot or too little.
    I can't find any with 300mA and voltage like the old one.
  • #6 16874837
    Freddy
    Level 43  
    Did you replace the input electrolyte?
  • #7 16874851
    mmario32
    Level 14  
    No. Output. In the photo, near the green cube. This is the exit to Leds.
  • #8 16874869
    kozi966
    Moderator of Electricians group  
    mmario32 wrote:
    No. Output.

    Of the topics I know related to such a problem, the red one on the bottom left is usually replaceable.
  • #9 16918729
    mmario32
    Level 14  
    The lamp is on. It turned out that the reason was not the power supply, but one of the Leds did not work properly. Interestingly, I connected them all in turn to the workshop power supply and they shone. Only connecting to the impulse power supply showed that one of the LEDs was blinking until it finally stopped shining completely.
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Topic summary

The discussion revolves around an LED lamp that began flashing after 15 minutes of use, suspected to be due to a faulty power supply. The user replaced three output capacitors (100uF/63V) but the issue persisted. They sought a replacement power supply with specifications of 23-46V and 350mA, mentioning two potential models: MPLC-16-350 and MPLC-16-250. A follow-up revealed that the actual problem was a malfunctioning LED, which was confirmed when the LEDs were tested with a workshop power supply, indicating that one LED was blinking and eventually failed completely.
Summary generated by the language model.
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