Recent content by Mkala

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  1. M

    Chinese LED chip remplacement

    You are right, sometimes it's not worth it repairing, electronics and LEDs goes forward fast. But I think we are throwing out too much things. Of course, quality is not always here -> so DIY is perfect way to do good a reliable things, because when you buys things you can buy quality, does not...
  2. M

    Infrared High Power LED

    An advice is you should not use big unknown sources LEDs from eBay like the one you linked, unless it is for testing or for playing with. Specifications are miles away reality, quality and reliability is sometimes even worst than and incandescent lamp :laughing: 80+w in a package is not...
  3. M

    Chinese LED chip remplacement

    I think you should take time to read more carefully. I don't do anything new with these kind of LEDs, just repairing thing that are made with. It's more complicated to find MCPCB that fit in application, if not impossible in many case. It's not my choice, it's the one of manufacturer. And my...
  4. M

    Chinese LED chip remplacement

    Yes, but at least I have a good die.. lol I know it does not solve the overall quality problem of these chip. If you have any idea to buy quality one, please let me know, thanks ;)
  5. M

    Chinese LED chip remplacement

    Thanks for your reply ;) Ok fine, I ll try to buy epistar and see if they works good and happy with reflow soldering. If not thermal glue/paste will do the job. Yes, it's only my theory, I'm not specialist in chip manufacturing and assembly, but something is wrong, for sure ;)
  6. M

    Advice on power supply for SORAA MR16 to minimize flicker?

    Not tried with a diffuser like recommendations, perhaps here is my mistake ;)
  7. M

    Chinese LED chip remplacement

    Thanks a lot for information, it's kind to spend some time to help me ;) Yes but these Luxeon are phased out from long time ago... I still have an old one, pins looks reversed however. I had the same experience : lack of thermal paste so died quite quickly in a few MR16 I repaired. But I'm...
  8. M

    Advice on power supply for SORAA MR16 to minimize flicker?

    Tried this app with a 10w LED with small power from a DC Laboratoy power supply : 100-200% flicker :crackup: Does not looks to work
  9. M

    Chinese LED chip remplacement

    Yes, but my idea is to replace just LEDs, it easier than finding MCPCB for each application. But as I understand no good led maker will sell LEDs of this shape now ? Don't has to be top performer, reliability and light quality is more my concerns. Quite sure I will found same LED chips in a lot...
  10. M

    LED Bulb

    Hello, Yes, in theory you can do this. The driver est responsible to translate the phase cut AC waveform to current regulation for the LED. In practice, it will be hard for you to find a good dimable driver that cost less than a new bulb (and is not a low end chinese sh*), that is compatible...
  11. M

    Chinese LED chip remplacement

    Hello all :wave: Nowadays a lot of lighting products have LEDs inside, and price come cheaper. One common problem I found is they are often made with with 1w and 3w cheap LED "bead" made in china... with a poor reliability. Someone know a good manufacturer that make a chip that is physically...
  12. M

    230V AC 120W replacement DIY Garage LED light

    Thanks for compliment, really appreciate :) Okay thanks for translation, I'm always happy when learning words or expression. I'm getting better and it's easier to Participate in English forums! It can be a solution, too. In fact, my biggest error was to forget that the place for the light in...
  13. M

    230V AC 120W replacement DIY Garage LED light

    Thanks for all these ideas :) The sphere solution could be nice... I think I will try. I keep you informed ;)
  14. M

    230V AC 120W replacement DIY Garage LED light

    It's an idea, but I have no idea where I can find an existing lens / and easy manufacturerable lends. What is "translucent material of canisters" ? Perhaps I will use my prototype in my pantry : smaller surface and higher ceiling will give me a good result :)
  15. M

    230V AC 120W replacement DIY Garage LED light

    No issue with gluing, warming and other thing. The heatsink remains really cool, it's well oversized for 18W. Glue is solid, now it's totally dry and I think it's almost impossible to remove glass. But... but ! I have a problem that I never think to : light is well too focused, angle is too...
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