Lighting Dimmer Buyer's Guide9/2009 Lighting dimmer controls provide variable light levels for incandescent and fluorescent lamps by reducing the voltage to the light fixture. Dimming reduces lamp wattage and light output, which can help save energy and significantly increase the life of incandescent bulbs. Dimming fluorescent bulbs requires specially designed dimmers and fixtures, but provides much greater energy savings than dimming an incandescent bulb, as the efficiency of the fluorescent bulb is not reduced when it is dimmed....Read More