CFL Compatibility with Lighting Controls
Our expert, Randall Whitehead, IALD, addresses lighting control compatibility with GU24 CFLs.
 
We have been having trouble using dimmable GU24 CFLs on the Lutron GRAFIK Eye® QS. CFL manufacturers say that their products dim with any incandescent dimmer, but Lutron says that it will burn out the system.
I’m right there with you. As California designers, we really need the GU24s to meet Title 24. One guy I spoke to on the Lutron tech support line suggested using the PHPM-PA interface, but this is untested so far by Lutron. It seems that all the company’s testing efforts are concentrated on LEDs, which is great, but LEDs don’t provide the omni-directional illumination of CFLs or CCFLs for decorative fixtures. And no manufacturer I can find makes an LED A-lamp with a GU24 base. They only come with screw-in bases, which don’t meet Title 24 requirements. My suggestion to the CFL manufacturers is to get your lamps tested by control manufacturers. My suggestion to the LED lamp manufacturers is to offer your lamps with a GU24 base. As designers, we are caught between the California codes and manufacturers of lamps, fixtures and dimmers. The control systems, beyond simple wall box dimmers, won’t dim self-ballasted GU24 or screw-in CFLs; and California code won’t let us use screw-in CFLs or LED lamps (which can be dimmed using more sophisticated controls). The good news is that I was able to get Lutron to look at the problem and work on a possible solution to creating an interface that will allow CFL GU24 dimming with their control systems. I’ll keep you posted.
Randall Whitehead lighting designer
Randall Whitehead, IALD

Randall Whitehead, IALD, is a professional lighting designer and author. His books include "Residential Lighting, A Practical Guide." Whitehead has worked on projects worldwide, appeared on the Discovery Channel, HGTV and CNN, and he is regular guest on Martha Stewart Living Radio. Visit his website www.randallwhitehead.com for more information on books, upcoming seminars and the latest lighting trends.

Leave A Comment

  • Web page addresses and e-mail addresses turn into links automatically.
  • Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd>

More information about formatting options

By submitting this form, you accept the Mollom privacy policy.

Lastest from ask randall

I am happy to help. I just redid the under-cabinet lighting in my own kitchen. The company that I used and recommend is Aion LED. I have also used... read full story
I like bright, but not scary bright. There is a big difference between brightness and glare. A bright light source that is too intense can make you... read full story
You have some flexibility with the distance off the mirror. It is the distance off the floor (5 feet 6 inches to the center of the luminous source)... read full story
This sounds like a lovely combination of finishes. We do have a bit of a challenge here. How do we keep these colors looking cool and crisp without... read full story

Webinars

Sponsored by Pure Lighting/Edge Lighting and Spotlite-USA.   Wednesday, Feb. 25, 2-3 p.m. EST Register for this free CEU webinar by clicking here. Webinar Overview:... read full story
Sponsored by Access Lighting, Engineered Lighting Products, Langlais Group Inc., LTF and Pure Lighting/Edge Lighting.   This webinar has already taken place, but you can... read full story
Sponsored by Access Lighting, Engineered Lighting Products, Ferguson, GM Lighting and Maxim Lighting/ET2.   This webinar has already taken place, but you can view an... read full story