Fix It!: Self-Dimming LED Downlight || How a new hardware revision improves everything!



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Everything about LEDs and current limiting resistors video: https://youtu.be/Qlayua3yjuE
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In this episode of Fix It! I will be having a look at a self-dimming LED downlight that quit working after only 1.5 years of usage. I will not only find the simple mistake that makes the light useable again but I will also explore the lights circuit secrets. I will show you exactly how it works and I will also directly compare it to the same lamp type which was produced a couple of years later and show you how the new light does everything better. Let’s get started!

Thanks to JLCPCB for sponsoring this video.
Visit https://jlcpcb.com to get professional PCBs for low prices.

Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod
(incompetech.com)

0:00 Showing the faulty LED downlight
1:49 Intro
2:29 Removing the light
3:08 Testing the light and finding the culprit
5:08 Disassembling the old light
5:40 Finding out how the old light works
7:49 Comparing the new light with the old one
10:03 Conclusion

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49 thoughts on “Fix It!: Self-Dimming LED Downlight || How a new hardware revision improves everything!

  • March 10, 2021 at 6:13 pm
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    Can you make a video about sensored and sensorless brushless systems like Castle and Hobbywing?

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  • March 10, 2021 at 6:13 pm
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    Do you think you'd ever do a DIY or buy for HDMI KVM's? I do a lot of work on 3+ computers and would love to build a diy KVM but I don't know where to start. I know software solutions exist but I'd love to get the hands on knowledge of building it myself! Great video btw 😀

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  • March 10, 2021 at 6:13 pm
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    Hey Scott! I see you sometimes using Arduinos. I don’t know if you know the Seeeduino XIAO, but maybe that’s something cool to check out ? Recently saw them on AliExpress and decided to buy a bunch. Really tiny devices and you can do quite a bit with them.

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  • March 10, 2021 at 6:13 pm
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    Love to see improvements in even the smallest part of one’s home’s appliances.

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  • March 10, 2021 at 6:13 pm
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    No flickering is GREAT.
    PWM is usually use because it cheaper.
    Glad to see the new IC.

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  • March 10, 2021 at 6:13 pm
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    Great!
    By the way can you explain how that multiple outputs are handled by single pole switch using RC timer.
    Past couple of days I was building an adjustable temperature led light panel to my room. This kind of function might be the best way to control it.

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  • March 10, 2021 at 6:13 pm
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    Are there any differences in light colors between both dimming technologies? I think the cause why using PWM is to maintain the full and original light color.
    Liebe Grüße 😀

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  • March 10, 2021 at 6:13 pm
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    What the fuck is wrong with your language?
    Who in their right mind looked at german and thought "hmmm… not enough rules" and why did the same individual after getting high on brake fluids decide to make a crap ton of exeptions to those same rules. What the actual fuck

    Reply
  • March 10, 2021 at 6:13 pm
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    Are you an electrical engineer or an electronics engineer?

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  • March 10, 2021 at 6:13 pm
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    I'm so hooked on this channel that now I'm starting to say "Stay creative and I will S E E Y O U N E X T T I M E !" like him

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  • March 10, 2021 at 6:13 pm
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    Normal people:buy a new lamp
    Great scott:let's open it and see what's inside

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  • March 10, 2021 at 6:13 pm
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    Damn that electrical box is a work of art. I mean, great video as always, but damn that's nice cable management.

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  • March 10, 2021 at 6:13 pm
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    GreatScott, the man who empties his pens faster than he manages to dim his LED lights;)

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  • March 10, 2021 at 6:13 pm
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    Hello Great Scott! Nice video.
    Did you understand how the new design converts AC to DC and boost it ? I cannot see any capacitive dropper like in the old design …

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  • March 10, 2021 at 6:13 pm
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    How does the cable break inside the ceiling? It's not like it's currently being moved…

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  • March 10, 2021 at 6:13 pm
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    after watching many of your videos and subscribing. what pen do you use to write with in your videos? it writes nicely and your hand-writing is top notch for these videos.

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  • March 10, 2021 at 6:13 pm
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    I really don't get the dimming part. Is it just the 0,5s transition?

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  • March 10, 2021 at 6:13 pm
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    You sir are the reason I have 7 toolboxes filled with circruitry components and soldering hardware, and also the reason my girlfriend calls me Tazer Boy! Keep up the epic content, you've saved a lot of people a lot of stress, hassle and trouble over the years by making electronics simple, fun and rewarding to learn and understand!

    Reply
  • March 10, 2021 at 6:13 pm
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    I think all (dimmable) LED lamps and pc/laptop monitor back-lights should be driven in the same way as the new version. Flickering LED lamps are uncomfortable to the eyes and can be really annoying, especially on lower PWM frequencies.

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  • March 10, 2021 at 6:13 pm
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    Oszilloskop für 13.000, jetzt bin ich neidisch ;-). Ich bin am überlegen, ob ich mir eines für 250,- hole, aber wann brauch ich das schon, bin ja eher Software-Entwickler, von Elektronik habe ich nur bisschen Kenntnis, bastle aber gerne mit Raspberry/Arduino….

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  • March 10, 2021 at 6:13 pm
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    I wonder how the cable break happened, because the cable wasn't bent back and forth all the time

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  • March 10, 2021 at 6:13 pm
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    Using embedded LEDs is a mistake – plug in GU10 is much better – can change failed bulbs cheaply, no risk of the same style going out of fashion, can change colour temperature if you want…

    Reply

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