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It is possible to dim both fluorescent and CFL bulb systems, but each requires a different approach and special hardware. Jeff Emmerson of our LAMPS PLUS Professionals trade pricing program says that, "It is much less expensive and more convenient to dim fluorescent lighting than ever before. Where fluorescent lighting is used in kitchens or dining rooms or family rooms, it is possible to install it on a dimmer."
However, altering fluorescent lighting is not as simple as just changing the switch, such as with incandescent bulbs. A special fixture and compatible dimming control are necessary. And, although it is possible and more inexpensive than in the past, altering the level of fluorescent lighting remains at a higher cost level than controlling standard lighting.
For fluorescent bulbs, a dimming ballast is required. The Lutron company invented the world's first electronic dimming ballast some 30 years ago. Today Lutron offers an extensive selection of fluorescent dimming ballasts and controls to support their complete fluorescent dimming systems. These are most often used in commercial or institutional applications. However, fluorescent lighting systems are increasingly being used in residential spaces, especially in recessed downlighting and coves or where energy efficency is an issue.
CFL, or compact fluorescent light bulbs, are commonly found in most homes today. To use a CFL bulb on a dimmer switch, you must have a CFL bulb that's specifically made to work with dimmers and dimmer switches. Several manufactureres, such as GE, make a dimming compact fluorescent light bulb. It is not recommend that you use regular compact fluorescent bulbs with dimming switches, since this can dramatically shorten the bulb life.
While incandescent bulbs create a warm, candlelight look as they dim, light from a fluorescent bulb remains cooler in color, and many times does not match the color tone of the fully lit CFL bulb. Unlike a regular incandescent bulb, dimming won't increase the life of a fluorescent bulb, either. What it will do is help set a mood for a room space.
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