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Lumenix 2835 12W LED Bulb Dimming Issue: Power at 5% & Reduced Brightness - Possible Causes

LiquI 25557 8
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 17194667
    LiquI
    Level 5  
    Hi, I have a LED bulb and Lumenix 2835 12W and recently it is dimly lit as if 5% of the power and it is slightly dim as if it lacks power. What could have happened? Below is a photo of the center of the bulb
    Lumenix 2835 12W LED Bulb Dimming Issue: Power at 5% & Reduced Brightness - Possible Causes
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  • #2 17194709
    bartekfigura
    Level 29  
    Probably the diodes are ok, only the internal electronics are gone and the trash with it ...
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  • #3 17194985
    LiquI
    Level 5  
    So nothing can be done? It is a pity because the seller promised that these LEDs are not very emergency and in general. It is a pity that I do not have a receipt because I would have sent the guarantee, but well.
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  • #4 17195007
    bartekfigura
    Level 29  
    You can try to figure it out, but LED sources are now so cheap that it is not profitable at all.
  • #5 17195026
    klamocik
    Level 36  
    90% is a break due to a damaged diode, check one by one, damaged sometimes has a black dot, if there is one branch it can be shorted (damaged diode) some time comes.
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  • #6 17198265
    LiquI
    Level 5  
    klamocik wrote:
    damaged sometimes has a black dot

    That's right, it had a dot, so I shorted it as you wrote and it started to glow.
    Thanks for the hint.
    One more question for you, how can I check them with a meter?
  • #7 17261170
    LemuRR 11
    Level 26  
    Quote:

    One more question for you, how can I check them with a meter?

    You won't check, these diodes have a voltage drop of about a dozen volts.
  • #8 19620133
    Loczek1992
    Level 2  
    I will connect to the topic, if I can, I have the same situation, only that the bulb in one room shines in 100c/o and in the other the bulb does not light up like that, come on from a month ago it was all ok, why maybe someone knows?
  • #9 19698784
    Majetta13
    Level 10  
    I have a similar thing, in the wall lamp the new 60w LED bulb is dimly lit, after installing another lamp it is ok.
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Topic summary

The discussion revolves around a Lumenix 2835 12W LED bulb exhibiting dim lighting, akin to operating at 5% power. Initial responses suggest that the internal electronics may have failed, while others indicate that a damaged diode is likely the cause, often identifiable by a black dot. One user successfully resolved their issue by shorting a damaged diode. Additional inquiries reveal similar problems with other LED bulbs, indicating potential issues with compatibility or installation in different fixtures. Suggestions include checking diodes individually, although measuring them with a meter is deemed impractical due to their voltage characteristics.
Summary generated by the language model.
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