LED DIMMERS - HOW THEY WORK - WHY THEY FLICKER - WHAT HAPPENS INSIDE A DIMMER - CAN I MIX LAMP TYPES

This video from LearnElectrics follows on from our recent video on dimmer switches for incandescent lamps. Many of the principles and methods of operation behind those older technology dimmers are similar for LED dimmers, but of course, there are some important differences.
Technology has had to move on with the introduction and development of new products, new methods and new materials. Both dimmer types have their place, and we hope that you benefit from this video on LED dimmers.
The principles here will work equally well with 50 Hz or 50 cycles per second as used in UK and European systems and will also be relevant for 60 Hz supplies as in North America and many other countries.
This is video number 229 and to view all our videos type in LearnElectrics all one word into the RUclips search bar.
Visit our RUclips channel where we have many more videos on a wide range of electrical topics.

[@merlin5476]

Led dimmers & led lamps generally give me more grief with customers than the old filament lamps. Even with matching brand of led dimmers and led lamps, they often flicker or just pack up. I've also had a customer replace 1 single dimmable lamp for a different make & the rest of his 9 led dimmable spots started to strobe badly at certain settings. Nowadays if a customer requires dimmable led's i try to talk them out of it.

[@hussmortada]

I have the same exact issue even when I use the V-Pro programmable dimmers that are very expensive I end up with issues and the client thinks it’s my fault! I try to explain the complications but it only makes it worse! I too try to talk them out of using dimmers.

[@learnelectrics4402]

Interesting contributions. Thanks for responding and yes, sometimes we wonder why we try to "improve" things.

[@learnelectrics4402]

Brings back memories of many lost hours chasing problems not of my making. As you say, try telling the client that.

[@leeedwards3783]

Enjoyed that. Thank you

[@learnelectrics4402]

Thank you Lee, very much appreciated comments. Lots more to come. Dave.

[@hussmortada]

Thanks again for a great video, this certainly helps as I come across the flicker issue all the time. Appreciated

[@learnelectrics4402]

If the video helps to solve some of the problems, great. Thanks for watching.

[@user-qi8tv2sj4m]

Really good. I didn’t know much about this. My learning has definitely improved. Thankyou.

[@learnelectrics4402]

You're very welcome, appreciated comments.

[@rooselectrix4846]

Very educational

[@learnelectrics4402]

Happy it helped.

[@martinlewis1015]

Sometimes you have to add a 1-6Uf capacitor to smooth out the flicker at lower dim levels. They should put these into circuits in the first place

[@learnelectrics4402]

Great input. Thanks Martin.

[@hvacrwrld1402]

Currently losing hair with DALI 😂 everyday is a schoolday!

[@learnelectrics4402]

Stick with it, you'll be a better person when it makes sense. Dave.

[@hvacrwrld1402]

@@learnelectrics4402 Thanks for the excellent content every week.
Got me through my 18th ed 👍

[@brianhewitt8618]

👍

[@learnelectrics4402]

Thanks Brian, thank you for your support. Dave.

[@picobyte]

LED dimmers are crap.
LED internal dimming with PWM also sucks.
We live in a cheap world.

[@learnelectrics4402]

Thanks for your input and thank you for watching.