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Dimming Ballast Wiring

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Dimming ballasts are available for fluorescent tubes and CFLs that use an external ballast. These ballasts are usually rapid start or programmed start, and have a good dimming range.

Dimming fluorescent lights are usually found in commercial and institutional environments and not common in the household.

Since dimmable fluorescent tubes are wired in series, they use non-shunted lampholders.

See Series Ballast Lampholder Wiring page for more information.

Dimming Ballast Wiring Diagrams

2 Lamp Dimming Ballast Wiring Diagram

Using Advance Mark 7 or Mark 10 dimming ballast and dimmer switch

2 Lamp Dimming Ballast Wiring Diagram

Standard 2 Lamp Series Ballast Wiring Diagram

3 Lamp Dimming Ballast Wiring Diagram

Using Advance Mark 7 or Mark 10 dimming ballast and dimmer switch

3 Lamp Dimming Ballast Wiring Diagram

3 Lamp Series-Parallel Ballast Wiring Diagram