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3 WAY LIGHTBULBS

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3 Way Light Bulbs

3 Way bulbs allow the light bulb to be turned on at three different settings, such as 50 watts, 100 watts and 150 watts. These bulbs can be used to set the mood or adjust lighting levels to accommodate different needs, such as lower light in the evening while preparing for bed and higher light levels during the day while working.

In an incandescent bulb, this is accomplished using two separate filaments. To light at the lowest setting, the bulb only uses one filament. The second setting uses the second, higher-rated filament. Full power utilizes both of the filaments. The lamp or light socket into which the bulb is inserted will control which of the two filaments is activated.

3 Way bulbs can also be CFL bulbs. Because CFL bulbs do not use filaments, they don’t work in the same way that 3 Way incandescent bulbs do, but light bulb manufactures have created 3 Way CFL bulbs to work for those who have 3 Way lamps and want to "go green." These bulbs allow for an increase in light output as the lamp works its way through the three settings. With 3 Way CFL bulbs, people can enjoy energy savings with the convenience of a 3 Way lamp.

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