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Ballasts HID Flourescents
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Fluorescent & HID Ballast
Fluorescent and HID lamps require a ballast to provide starting voltage and
establish an arc (flow of energy) between lamp electrodes. Once that lamp is up
and running, the ballast regulates the current and power. There are three types of ballasts: Magnetic, Magnetic F-Can, and Electronic.
- Magnetic Core and Coil
The magnetic ballast is the more simplistic of the two. It uses a core and coil system to start and operate a lamp. They are often found in older fluorescent or HID systems. They are heavier, larger and louder than electronic ballasts and produce a visible flicker.
- Metal Halide and High Pressure Sodium Ballasts
Specially encased and potted in fluorescent ballast-type cans and utilizing Class A asphalt insulating materials to minimize ballast noise, our line of fluorescent can (F-Can) ballasts for high intensity discharge (HID) lamps (including metal halide and high pressure sodium models) are optimal in a variety of commercial, retail, and institutional applications.
F-Can ballasts are ideal for down lighting and indirect lighting opportunities within offices, schools, and retail stores as well as in noise-sensitive areas such as libraries.
- Electronic Fluorescent & Electronic HID Ballast
The electronic ballast is a more complex unit that uses electronic
components instead of core and coil assemblies. They are energy efficient, smaller, lighter weight and quieter than magnetic ballasts. They also do not have the visible flicker associated with magnetic ballasts. Electronic ballasts are commonplace in today’s newer fluorescent systems and are becoming more widespread in HID systems. The electronic ballast has about 10% more light output than equal wattage magnetic systems.
Starting and operating methods can further distinguish ballasts: Instant Start (IS), Rapid Start (RS), and Programmed RS.
- IS: Applies high voltage to the lamp to start it without the heating
of electrodes. In some instances, there is a shorter lamp life, but
with new ballast technology, this is less of an issue. Because it
doesn’t heat electrodes, it is fairly efficient in energy consumption –
not the best and not the worst. The efficiency often offsets shorter
lamp life.
- RS: While heating the electrodes, this type of ballast applies
starting voltage across the lamp. Because the electrode heating is
constant, it consumes more energy; less stress on the electrodes
can provide longer lamp life.
- Programmed RS: This is the newest method of heat delivery to
the electrodes, establishing optimum operating temperature, before
voltage is applied. It is a balance of lamp life and energy efficiency.
With all lighting-related systems, the initial cost of the system, efficiency issues maintenance requirements, and adaptation to new technologies should all be considered.
Electronic HID ballasts bring exceptional performance enhancements to every aspect of HID lighting systems, with greater energy efficiency, more consistent lamp color and maximized lumen maintenance and lamp life. The low frequency electronic ballasts help ceramic lamps maintain consistent, superior color properties, while high frequency ballasts deliver significantly improved lumen maintenance throughout a lamp's life. Listed below are common features of an electronic HID ballast:
- A 15-22% energy savings when replacing an HID electromagnetic
ballast.
- Over 90% energy efficient ballasts.
- Low watts per square foot and long lamp life provide lower
cost of ownership compared to halogen.
- Low frequency square wave electronic ballast maximizes
ceramic metal halide performance and lamp life.
- Industry standard mini-square can size.
- Ultra cool operation ensures maximum ballast life and
maintained warranty.
- A 2% output regulation over accepted ANSI lamp voltages
reduces visual flicker and maintains consistent lamp color.
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