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, IALD
Latest from ask randall
This is a challenging question that may require a bit of compromise. To keep the cooler hues appearing crisp and white, you need to select a color... read full story
First off, I'm very glad that you are using a pair of sconces flanking the mirror. You don’t want fixtures that point light up or down, but instead... read full story
I wasn’t immediately familiar with the CE listing, but I’ve done my research. This is a label used in European countries and is applied to products... read full story
This is a little bit of a challenging situation. You want to have a fixture that you can’t look inside of easily — we don’t want to see the bulbs... read full story
Sponsored by Legrand and Bulbrite. Wednesday, October 5 at 2 p.m. EDT Register for this free CEU webinar here. Webinar Overview:Learning units:AIA/CES LU (HSW) 1.0... read full story
Sponsored by Emerson and Legrand. Wednesday, August 10 at 2 p.m. EDT Register for this free CEU webinar here. Webinar Overview:Learning units:AIA/CES LU (HSW) 1.0... read full story
This webinar has already taken place, but you can still watch it on demand by registering here. Webinar Overview:Learning units:AIA/CES LU (HSW) 1.0 Learning UnitIDCEC (IIDA/... read full story