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Thread: PD-6WCL flickers with 3 LED bulbs in ceiling fan fixture

  1. #1
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    PD-6WCL flickers with 3 LED bulbs in ceiling fan fixture

    I installed a new Lutron Caseta PD-6WCL dimmer switch to control the light fixture of a ceiling fan. The fan has three candelabra bulb fixtures. With three LED bulbs, the LEDs flicker constantly, like a strobe light. With two LEDs and one incandescent bulb, all three bulbs work normally. I bought a brand new set of LED bulbs, rated for dimming, in case it was the older bulbs. The same behavior, maybe worse, with a constant stroboscopic flicker.I'm at a loss. Is the switch bad? Does Lutron not support LEDs? Or do I need a newer ceiling fan that supports LEDs? Do I need specific LED bulbs? Any help is appreciated. :)

  2. #2
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    Finding the right bulb/dimmer compatibility can be a challenge. You can try lutron.com/led. They only test what bulb manufacturers send in for testing. I generally find that EcoSmart (HomeDepot brand) works well.

    Every dimmer has a minimum load level. In most cases it is one LED. Depending on the bulb it could be 3 or 4. Adding the incandescent pushes it way over the minimum load.

    It's generally not an issue with screw-in LEDs but some may require reverse phase (ELV) dimming. The 6WCL does not support reverse phase dimming.
    Convergence Technologies Raleigh, North Carolina
    www.convergenceusa.com

  3. #3
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    Quote Originally Posted by randyc View Post
    Finding the right bulb/dimmer compatibility can be a challenge. You can try lutron.com/led. They only test what bulb manufacturers send in for testing. I generally find that EcoSmart (HomeDepot brand) works well. Every dimmer has a minimum load level. In most cases it is one LED. Depending on the bulb it could be 3 or 4. Adding the incandescent pushes it way over the minimum load.It's generally not an issue with screw-in LEDs but some may require reverse phase (ELV) dimming. The 6WCL does not support reverse phase dimming.
    I can look for different LEDs. Sounds like the Caseta load balancer might also help?

  4. #4
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    If you are talking about the LUT-MLC, it should only be used with either reverse phase dimmers (such as the PD-5NE for Caseta) or ON/OFF switches. The LUT-MLC was only designed to fix issues with ghosting (lights not turning all of the way off) and it is not recommend to be used in most other applications.

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