Seen this in many houses, people upgrade their lighting setup and install a dimmer. Which works. But usually it also makes the lights flicker unintentionally, which is super annoying IMO.

Now, my understanding of electrical engineering is pretty rudimentary so I’d appreciate more something that explains the concept in a way that Cavewoman Mothra can understand rather than something technically accurate.

Thanks

You are viewing a single thread.
View all comments View context
7 points

Thanks, some of this makes sense. But why is it then not constantly flickering? They usually flicker for, say, five seconds then they stop flickering for 20 then they flicker again and so on. Or they flicker for like a minute then they’re fine for a couple more minutes, then back again flickering. The timings vary a lot from house to house.

permalink
report
parent
reply
8 points

Building on their comment, perhaps the capacitor is building up energy and dissipates it every 20 seconds. Like beats in resonance when you hear a pulsing in the volume when a guitar plays a single note or chord.

permalink
report
parent
reply
3 points
*

In my experience some brands of “dimmable” LED lights flicker and some do not. If you problems with flickering lights, try a different brand on that socket as an experiment. It might be the quality or type of components used.

permalink
report
parent
reply
1 point

No LED bulbs will work properly with triac based dimmers. “Dimmable LEDs” are horrible hacks that just about cling on for dear life, and many just won’t work at all. Those dimmers are for incandescent bulbs.

The right way to dim an LED is pulse width modulation of the DC power, not chopping up the AC wave. That’s what smart bulbs do because they have the dimming logic after the power supply is convertered from AC to DC in the bulb enclosure.

permalink
report
parent
reply
1 point

Well, this is anecdotal, but I bought an older home (circa 1990’s) with dimmers already built in. We went through a number of LED bulbs and most flickered and some did not.

permalink
report
parent
reply

Asklemmy

!asklemmy@lemmy.ml

Create post

A loosely moderated place to ask open-ended questions

Search asklemmy 🔍

If your post meets the following criteria, it’s welcome here!

  1. Open-ended question
  2. Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
  3. Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
  4. Not ad nauseam inducing: please make sure it is a question that would be new to most members
  5. An actual topic of discussion

Looking for support?

Looking for a community?

Icon by @Double_A@discuss.tchncs.de

Community stats

  • 9.2K

    Monthly active users

  • 3.1K

    Posts

  • 56K

    Comments