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Discussion Starter #1
Hey guys,

I have this ceiling fan. It's a Hunter Allendale Ceiling fan:



Today, I wanted to put some "dimmable" LED lights into it. So I bought 4 of these @ $8.97 each:



Came home, installed all 4 and they wouldn't dim, looked like strobe lights during the dimming process, and at full max they would dim down and back up. So I took them back.

Then I decided to buy the Phillips brand which was $2 more each.



Came home, and started to install one at a time to see if there would be any issues. First three installed and they were dimming like they were suppose to do, until I put the fourth bulb in. They I got the same results as the first set. Started flickering, strobing,.........WHY? WHY are LED's doing this with all four bulbs installed? Currently, I've put one of the regular bulbs back in, they work great this way.

Does anyone have some facts about LED's that I'm missing?
 

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Premium Member
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5,774 Posts
You need to buy a dimmer switch that is rated for CFL and LED lights.
Lutron makes one.
Or you can try a dimmable LED bulb, not sure if thats what you bought cuz I can't read the package.
 

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Premium Member
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Flickering is a very common problem with LEDs on a regular dimmer even if the bulbs are dimmable. LEDs a more complex than most people think.
 

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Premium Member
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If you're going to be using "Dimmable" LED bulbs, you need to invest in a LED rated dimmable switch.

Even though they all say "Dimmable" on the package, there is the caveat that it requires a newer made switch to make the function properly.

Some of the larger LED units will work with the more common switch but they also have larger circuits in the base and are drawing more actual wattage. I am slowly changing out bulbs in my home to LED units as others burn out. I just replaced my outside garage lights with 100w equivalent LED Cree lights that are actually pulling 18watts. They stay cool inside the housing, even after burning all night long.

At my hospital, they just went through and spent a lot of money replacing the fluorescent bulbs with LED. I talked for awhile with the contractor that was doing the job and he said they are coming out with better LED's that will work better with common dimmer switches but they are a lot more expensive than what's out there now and even they don't work as well as incandescents on non-led rated switches.

They won't go as dim before shutting off. Some will only go from off to fully on with the dimmer all the way on.

The short ans sweet of it is, spend the extra $30 on an LED dimmer switch.
 

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Past Bronco Owner
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4,855 Posts
I have the Feit 4.8w LED candelabra ones from Costco. 3 pack is around $21. They also have them at Amazon. I have them in 5 fans and a few other places around the house. I'm using Harbor Breeze in wall fan controller/dimmers for the fans/lights.

While the will slightly flicker at the lowest setting they are way better than others I have tried.
 

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Premium 4 Lyfe - Way Back Staff
'95 XLT: 5.8, MAF, E4OD, 4.56's, 6" on 33's
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I had this problem with an LED I installed in my "man-room". Ended up taking out the dimm switch and going to straight on/off switch. Damn light cost over $250 though and I don't have the money or patience to futz around with it. :shrug
 

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Discussion Starter #7
You need to buy a dimmer switch that is rated for CFL and LED lights.
Lutron makes one.

Ahhhh..... well then....

The switch I'm currently using is this one which by the way wasn't cheap. And I have the same switch in the master bedroom too (which isn't giving me this headache using the same LED's)

Lutron MA-LFQM-WH


And it says:

The Maestro Combination Fan and Light Control helps transform the room around you and creates a whole new level of comfort. As you enter the room, this single Maestro combines the function of one fan control plus one light dimmer. Change the fan speed and adjust light level with one control eliminating the need for inconvenient pull chains. LED's indicate light level on top control and fan speed on bottom control, and the fan control allows you to recall your favorite fan speed and light level. Seven quiet fan speeds enhances the comfort of any room. The Maestro combination fan and light control works with virtually all existing wiring and coordinates with the entire family of Maestro dimmers, switches, and accessories. A Claro wall plate and a fan canopy module are included in this kit. For use with indoor ceiling paddle fans and incandescent/halogen bulbs only.

  • For use with incandescent and halogen bulbs only
  • Single location control for a fan and light
  • Includes 1 maestro fan and light control, 1 fan canopy module, and 1 Claro wall plate
  • Recall your favorite fan speed and light level with the touch of a button
  • Works with virtually all existing wiring
  • Sets and recalls 7 light levels and fan speeds
  • For use with indoor ceiling paddle fans only
I guess I have 3 options.....
  • Don't use LED's
  • Use 3 LED's and one standard
  • Or try and find a switch for use with LED's
 

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I ♥ TTB
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Like everyone mentioned. Flickering can be caused by "cheap" led's, but is typically related to the rheostat in the dimmer switch not functioning properly due to the lack of load.
I've sell the standard LED/CFL Lutron switches for $20-30 depending on style, I'm sure the fan control one will set you back double. I would imagine they offer the newer style with all of your options and then some these days. (Lutron had some pretty fancy stuff at the last trade show)

With the same switch/LED's/Fixture working fine in the other room you may try swapping switches to isolate the problem to the switch or the fan.
 

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Premium 4 Lyfe - Way Back Staff
'95 XLT: 5.8, MAF, E4OD, 4.56's, 6" on 33's
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Hmmm... I'm learning something. I might have to get my light setup back to the dim switch, if there actually is a switch specific to these LED home lights.

Here's the one I picked up from the HomeDePot...
http://www.homedepot.com/p/Lithonia...Wraparound-Light-LBL-4/203839057?N=5yc1vZc7p5

Would have been nice if the kid would have told me I might need a specific dimmer, since I asked if the setup would work with my regular dim switch. :rolleyes:
Thing lights up my small, office room instantly and very well and not having to buy bulbs for it... ever again (50,000 hr's of 4000 lumens), justified the extra price. :thumbup



edit ad: just noticed, the site specifies my fixture is non-dimmable specifically. Guess the switch won't make any difference for mine.
I'd take it back... if I still had the box, reciept and the patience to tear it all back out. Oh well. Live and learn.
 

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Discussion Starter #10
With the same switch/LED's/Fixture working fine in the other room you may try swapping switches to isolate the problem to the switch or the fan.
Well, the bedroom ceiling fan only uses 2 bulbs where as the family room uses four. Not sure if that makes a difference or not.

As I'm preparing for my vacation next week, I'm not going to have time to swap the switches soon. But when I get an urge to do something, I will try to do that.

...or swap the switches. ;) You may enjoy the flickering in the bedroom. :hump :duh
LOL! :rockon
 

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I ♥ TTB
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Don't hate him. He probably knows less about LEDs than you do. He probably knows less about anything than you do.
It's true, I'm surprised at the lack of knowledge from most stores even from their "lighting specialist" I'm constantly getting stopped and asked questions from them when I visit those places. :rofl:
 
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