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We see fluorescent lamps everywhere. Many owners upgrade older systems to increase energy efficiency. In new construction, it’s common to specify high-efficiency fluorescents.
Some designers take this to the next level by specifying dimmers. However, installing dimmers can turn out badly if you don’t know what you’re doing.
While dimmers do extend the life of incandescent lamps, dimmers do not extend the lives of fluorescents. A mismatch of dimmer and lamp type can actually decrease lamp life.
With fluorescents, look at the dimmers, ballasts, and lamps as a system. Your electrical distributor can help you correctly match components. When discussing your project, understand that you’re working with several variables. You must control these during all dimming phases, and you can do that only by using a dimmer designed for a particular lamp.
The variables are:
Source: Mark Lamendola | Mindconnection