KNOW HOW: Dimming LED lamps - Tips, tricks and problems
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- Опубликовано: 15 май 2024
- Dimming LED lamps is easy if you follow the advice in this video. Are all LED lamps the same and does the type of dimmer switch make a difference?
We take 5 popular GU10 LED lamps (you make still call them LED bulbs - sheesh) and test them out on a legacy leading edge dimmer switch. We then demonstrate the difference a trailing edge dimmer can make to dimming performance.
🕐 TIMESTAMPS 🕕
======================
00:00 Dimming LED lamps (some people still call them LED bulbs)
00:50 Replacing dimmable GU10 halogen lamps.
01:09 Legacy leading edge dimmer technology.
02:01 Swapping GU10 lamps for a dimmable GU10 lamp (V-TAC)
03:11 Limited dimming range with a legacy leading edge dimmer.
04:00 Improved dimming range with alternative lamp (Ledvance / Osram)
05:21 Improving dimming range with a trailing edge dimmer (Knightsbridge)
06:30 It's all down to the dimming curve of the lamp.
07:14 Mixing different lamps on a dimming circuit (not recommended)
08:30 Top tips for dimming LED lamps.
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💡 THE COMPLETE GUIDE TO DIMMING LED LAMPS PLAYLIST⚡
• The complete guide dim...
Useful information on dimming LED lamps
www.efixx.co.uk/Know%20How/kn...
== AD ===========================
🧰 GU10 LED lamps - Parts listed below are warm white dimmable
** Beware manufacturers often produce different lamp families with alternative colour temperatures, beam angles, colour rendering and price-performance criteria **
** Philips Dim Tone GU10 (changes the white tone as you dim)
bit.ly/3k7uH44
** Philips Master LED - High colour rendering ra97
bit.ly/343kvUH
** Osram / LEDVance GU10
bit.ly/2T1a1Pi
** V-TAC Pro GU10
amzn.to/3dDElcn
Aurora GU10 lamp
amzn.to/3k5albQ
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🎦 Presented by
Gary Hayers - Editor eFIXX
Gordon Routledge CEng MIET - Technology Editor eFIXX
#efixx #morepower #dimming 
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I tend to go for Varilight dimmers for LED.
Thank you gentlemen; you answered my questions quickly and fully.
I know here in the US, there are some LED lamp manufacturers whose LED bulbs are compatible with both types of dimmers (leading and trailing). My go to dimmer is Lutron Triac and ELV types.
Hi, Awesome video explains very well, thank you and much appreciated. Do you which bulb GU10 would be the best to use with the Sonoff D1 dimmer?
Yes madam I’ve brought 10 dimmers and 15 different makes of LED gu10s and I’ll be here for 6hours.
Methinks the industry needs a standard alphabet system that states what can be used with what.
EG Crompton “C” with these dimmers eg varilite , Hamilton etc
Seems like shooting in the dark at the moment, excuse the pun😂😊
Keep up the vids boys
Yes we do, although that still will not help the people who put non dimmable lights on a dimmable circuit and then have strobing issues.
I get calls “these led things are flashing can you take a look”
Then I discover they’ve bought some non dimable gu10’s from Wilco 😊
Send them to this video ruclips.net/video/EGP9ciKYr5o/видео.html
@@bertiebassett1972 I'm in the US and used to work with a nonprofit/band that would rent out a hotel conference room once a month. one of their can lights got swap for non-dimmable LED and they're like yeah I does that so... Oh wait I think that was the same response I got from somebody trying to claim that diming the lights used more energy and had the same response to one of their lights been swapped out. The non-technical people out there don't care they just assume that's the way it's supposed to work and go on life trying to ignore the fact that it annoys them.
Great video, I have the exact same CRI97 Philips Master GU10 and it was really helpful. By the way, LIDL recently introduced their own CRI97 GU10 lamps, costing 10 times less than the Philips... dimmable, too.
Hi Guys,
Good videos.
Ive been using Philips WarmGlow Dimmable GU10 LED, 3.8 W - 50W Equivalent, 2700 - 2200K.
I put them on a BG dimmer controlling 4 of the GU10s and had no problem.
The BG dimmer has a minimum load of 5 watts.
But the same dimmer had a problem with a Philips 8 W E27 lamp even after adjusting the trimmer at the back, got flickering at a certain spot.
I think some dimmers just won't work with very low load.
Thank you sirs for showing operation of different dimmers on different kinda bulbs.
Looks like advancing dimmers technology is one good way in reducing carbon foot print. Jussojuan
Very well explained nice use of the oscilloscope. Your point is important care is needed to ensure compatibility between lamps and dimmers. It would have been to cover WiFi dimmers and specific issues around then. Also one are that was not covered I would like to see more about is the power quality issues their ability to generate harmonics and transients - leakage of this chopped waveform onto nearby located circuits say a light dimmer resistive load and nearby performance of day inductive loads like a vacuum cleaner or even hairdryers. That has two advantages one better brands do invest in keeping that leakage low and second showing electricians the importance of accounting for power quality issues. Very nicely set up and clear display well done to all involved.
We will look at wifi\smart dimmers when we can get hold of a few decent ones 😀
Is also the aspect of interference with audio systems with the harmonics in the electrical system.
Excellent videos gents. I've just been binge-watching your LED strip presentations - fantastic. Now, this video is the FIRST one I've seen that talks about LED lamp compatibility with leading edge phase cut. I've very relieved!! My home has the Dynalite system with halogens. I thought I'd have to swap that or the transformers to drivers. But now you say, I can just swap the LED 'bulbs'.
Q: am I correct, and how does one tell which fittings will work/dim? Surely something in the globes' specs would give it away? Again, thoroughly enjoying these videos - keep going. J.
The only thing that may cause issues with the Dynalite is the minimum load. Manufacturers sometimes publish compatibility charts. Our suggestion would be to pick a lamp from Philips or OSRAM ( Ledvance) as they tend to perform best.
@@efixx Thank you very much for your reply and your suggestion - I'll definitely do this!! Halogens of course use an electronic transformer between the fitting and the phase-cut supply - would I need to change this?
These LED bulbs are GU10. Mine are all MR16, the low voltage one that requires additional driver/transformer/adapter. Will any of these dimmer work with MR16? I tried replacing to MR16 LEDs in one room, the old dimmer caused all LEDs to blink, I had to remove the dimmer in the end.
V-tac lamps im suprised they lasted the length of the video :)
What about touch lamps? My son has a globe with a base which you touch to dim. Is this leading or trailing edge or something different?
Hi Guys thank you for that, I recently changed a dimmer for a failed one controlling 4 down lighters, 3 had dichroic lamps and one LED lamp, guess what, different dimming pattern. The new Aurora dimmer module had a small adjustment dial on the side which helped smooth the LED. Could you explain the workings of this particular situation
Check out the next video in the series - ruclips.net/video/ii_dyfigDtA/видео.html -it should answer your question.
Hi I have 12 LED light 230V 50Hz
5W DIM. And dimer two switch both 250W max GLS 1-10 leds 100 W max.
And dimer not working i Have Tried to take off some light to reduce amount but still not working. Wires are good
Lets hope over time the compatibility of a new lamp is within spec of the same lamp after a duration of service (of these new lamps upon eventual failure within its guaranteed service life) ie. still dim within resonable observable brightness between lamps. (or bulbs if a variety of bulbous shape lamp exist)
I ve bought sylvania refled superia retro led 4.5.w dimmable.But it can not be fully low dimmed its around 30percentage.I am using an old jung 266gde switch for halogen lamps but works fine apart from low dimming.Any suggestions
Maybe there's a minimum load on your dimmer?
I use Zigbee smart lamps T5 or candle, so this problem does not show up!
Is there any instruction or symbol on the side of the lamp, to say it requires a leading or trailing edge dimmer?
Not on the lamp it usually says dimmable with a small asterix * - which will mention a compatibility chart on the manufacturers website. If you check out this you'll see a list of dimmers, minimum dim percentage and type of dimmer - leading / trailing.
@@efixx that’s stupid, why don’t they stamp leading or trailing on the lamp?
Daddy B Not all the general consumer or even tech savvy so SMART to understand what Leading vs Trailing Edge dimmers are all about, let alone to distinguish amongst them.😒😡😒
Are you going to do a video on LED driver selection?
We have made a few on constant current drivers ruclips.net/video/_YnZmQLOfA4/видео.html We will revisit in the new year - so let us know what you’d like to see covered.
How able more then 2 pcs led
Canadian Apprentice. Why is your AC waveform so weird? Is that what the European 50hz looks like? Our AC is a sine wave
How does street light dimmer? Please give me a circuit or Idea for dimming led street light
Street lights usually dim using a DALI or 1-10 volt LED driver
Please give me a link site for Help,thank you very much, l wonna dim street light using Arduino
i thought everyone just use Varlight v pro dimmers works with every lamp 2nd to none. That good i wouldn't even consider any other brand
Zim zimma who got a lamp for me dimmer!.....
Dimming lamps is always a nightmare. 😣
Vpro every time
You can "dim" some "non" dimmable LED bulbs with a simple capacitor dimmer!
ruclips.net/video/JH68wBXO5j0/видео.html
The viewing angle of the scope could have been better.
Very bad then no standard for lamps or dimmers, and the person that looses out is the customer