Lutron CL Universal Dimmer Guide
Dimming saves energy while setting the right light level to improve mood and ambiance.
Dimming saves energy while setting the right light level to improve mood and ambiance. Screw-in compact fluorescent lamps (CFLs) and screw-in light emitting diode bulbs (LEDs) are a great energy-saving alternative to incandescent or halogen light sources; however, dimming them may be difficult. Lutron’s new C•L™ Dimmers for dimmable CFL and LED bulbs have HED™ Technology which helps alleviate your CFL and LED dimming challenges.
Challenges of Dimming CFLs and LEDs with Standard Dimmers
Energy-saving CFLs have been in the marketplace for many years but a broad range of dimmable bulbs has only recently become available. LEDs are even newer to the market and dimmable versions are also only recently available.
These dimmable bulbs, especially CFLs, have historically presented problems when used on standard incandescent dimmers.
Common issues include:
Reduced dimming range: Incandescent/
Lights dropping out: As CFL or LED bulbs are dimmed, they will sometimes turn off before the slider reaches the bottom. Referred to as “drop out,” this makes it extremely difficult to set the dimmer at the right level without bulbs turning off.
Lights not turning on: After being dimmed to a low light level and switched off, sometimes CFL or LED bulbs will not turn on until the dimmer’s slider is moved up. This is referred to as “pop-on,” which is especially challenging in 3-way situations where lights can be turned on/off from different locations, not just using the dimmer.
Lights turning off unexpectedly:
Note: Actual performance of any CFL or LED will vary from bulb type to bulb type and among different manufacturers. It is important to note that only bulbs that have been designed as dimmable should be used on a dimmer. To find out if your bulb is dimmable, please check the package, the bulb itself, or call the bulb manufacturer directly.
New Dimmers from Lutron
To help combat these issues, Lutron has developed a family of C·L dimmers for dimmable CFL and LED bulbs. By incorporating HED Technology, these dimmers improve the dimming performance of dimmable CFLs and LEDs compared to standard dimmers by:
Keeping the lights on as they are dimmed
Making sure the lights turn on at all light levels
Keeping the lights on even with line voltage fluctuations
About HED Technology: HED Technology features advanced dimming circuitry that is designed for compatibility with most high efficacy light bulbs.
Lutron C·L dimmers with HED Technology also provide full-range dimming for halogen and incandescent bulbs, ensuring today’s dimmer is compatible with tomorrow’s light sources. The dimmer can even dim a mixed load of light sources (i.e. LED and halogen or CFL and LED bulbs on the same circuit). C·L dimmers are available in our Diva®, Skylark Contour™, Luméa®, Ariadni®/Toggler®
You may have noticed that your wall-mounted dimmer is equipped with an adjustment dial. Because performance is so varied from bulb to bulb or manufacturer to manufacturer, the adjustment dial will help you set the bottom of the dimming range for your particular bulbs.
Bulbs Approved for Use with this Dimmer
Per UL standard 1472, Lutron must test each bulb to ensure its compatibility with our C·L dimmers. For a list of compatible bulbs click on the link below. This list will be updated as Lutron tests more bulbs. Please check back regularly for updates.
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