Fluorescent & Compact Fluorescent (CFL) Ballasts

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Fluorescent ballasts and compact fluorescent (CFL) ballasts install into compatible lighting fixtures to protect fluorescent and CFL light bulbs from damaging power fluctuations that can reduce the quality of the bulbs' light output. They provide an initial spike of high voltage to turn on the bulbs and then regulate the current to the bulbs for as long as they are on. Dimmable ballasts are compatible with lighting controls that allow a fixture's light output to be dimmed, and non-dimmable ballasts are compatible with lighting controls that turn lights on or off but do not dim their light output.

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Instant Start Electronic Fluorescent Ballasts

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Instant-start electronic fluorescent ballasts turn on lights immediately and are used in fluorescent lighting fixtures in warehouses and other areas where lights are left on for long periods of time. They provide high voltage at start-up and should not be used with occupancy sensors or other lighting controls that turn lights on or off frequently.

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Rapid Start Electronic Fluorescent Ballasts

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Rapid-start electronic fluorescent ballasts turn on lights near-instantaneously. They are less damaging to light bulbs than instant-start ballasts and are used in lighting fixtures that will be turned on or off frequently via occupancy sensors and other lighting controls that automatically operate the lights. The ballasts provide a small amount of voltage to preheat the bulbs' filaments before the bulbs turn on.

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Programmed Rapid Start Electronic Fluorescent Ballasts

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Programmed rapid-start electronic fluorescent ballasts turn on lights near-instantaneously. They are more energy efficient and less damaging to fluorescent light bulbs than instant-start ballasts and rapid-start ballasts. They are used in lighting fixtures that will be turned on or off frequently via occupancy sensors and other lighting controls that automatically operate the lights. The ballasts provide a small amount of voltage to preheat the bulbs' filaments before the bulbs turn on. This small initial voltage is supplied for a specific amount of time to avoid glow current, which can damage the light bulbs.

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Preheat Start Magnetic Fluorescent Ballasts

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Preheat-start magnetic fluorescent ballasts usually take a few seconds to turn on fluorescent light bulbs. They have a longer lifespan and are less damaging to bulbs than trigger-start ballasts. The ballasts use a starter to provide a small amount of voltage to preheat the bulbs' filaments before providing sufficient voltage to turn the light bulbs on.

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Proprietary Continuous Dimmable Fluorescent Ballasts

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Proprietary continuous dimming ballasts are only compatible with continuous dimming controls from the same manufacturer and series. They are most often used in fluorescent fixtures in lighting system retrofits or new construction lighting installations for large hospital, corporate, and university campuses. The ballasts and dimming controls interface precisely with each other, which makes them more reliable than other types of ballasts and dimming controls. These ballasts allow the fixture's light output to be adjusted from 100% light output all the way down to the ballasts' lowest light output setting.

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Line Voltage Continuous Dimmable Fluorescent Ballasts

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Line-voltage continuous dimming ballasts are compatible with line-voltage continuous dimming controls and allow the fixture's light output to be adjusted from 100% light output all the way down to the ballasts' lowest light output setting. They are used in fluorescent lighting fixtures in conference rooms, private offices, auditoriums, and areas where lights will be dimmed infrequently. The ballasts receive control signals through their power leads to dim the fixtures' light output, and they don't require any extra wiring to connect them to the lighting controls.

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Trigger Start Magnetic Fluorescent Ballasts

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Trigger-start magnetic fluorescent ballasts require a higher open-circuit voltage than rapid-start ballasts to turn on fluorescent light bulbs. They turn light bulbs on near-instantaneously, but it may take the bulbs a few seconds to reach full brightness. The ballasts do not require a starter and provide a small amount of voltage to preheat the bulbs' filaments before providing sufficient voltage to turn the light bulbs on.

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Rapid Start Magnetic Fluorescent Ballasts

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Rapid-start magnetic fluorescent ballasts turn fluorescent light bulbs on near-instantaneously, but it may take the bulbs a few seconds to reach full brightness. They have a longer lifespan and are less damaging to bulbs than trigger-start ballasts. The ballasts do not require a starter and provide a small amount of voltage to preheat the bulbs' filaments before providing sufficient voltage to turn the light bulbs on.

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