Fluorescent Ballasts Overview

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Get an overview here about fluorescent ballasts. This video covers the three main types, including magnetic rapid start ballasts; electronic programmed rapid start ballasts; and electronic instant start ballasts.

The video also covers the pros and cons of each style of ballast:

Magnetic rapid start ballasts -- an older technology -- work well in the cold, and because it ramps up the voltage, it's gentler on lamps that an instant start technology. This ramp-up, however, means that there's some delay in the lamp reaching full brightness.

With an electronic programmed rapid start ballast, you have a more calculated ramp-up, making it even better for the lamps than the magnetic style. It can also be used with occupancy / vacancy sensors.

As the name suggests, an electronic instant start ballast gives you instant light when you hit the switch. However, this stresses lamps more and shortens their lives. It also voids lamp warranties and cannot be used with occupancy / vacancy sensors. These should be used in situations where lights are rarely turned on but where instant light is needed.

You can check out our related video on CFL bulbs and ballasts:
   • CFL Bulbs and CFL Ballasts