Magnetic chokes for HID

FAQ: Frequently asked questions

1. What is the expected lifetime of magnetic ballasts?
   • The expected lifetime of magnetic ballasts is 100.000 h at the defined temperature.

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2. What will happen if I use a magnetic ballast in a power supply with different voltage/frequency than the ballast is designed for?
   • The impedance of a magnetic ballast depends on the frequency. In order to achieve the proper lamp current and lamp voltage, magnetic ballasts have to be operated at the specified mains supply.

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3. Which ballasts/igniters are suitable for my lamp?
   • This depends on 

     • the application 
     • the lamp
     • and the quality of the luminaire.

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4. I want to upgrade my luminaire from a mercury vapour lamp to a sodium vapour lamp. What do I need to know?
   • The light sources are replaced and an additional impedance (with integrated igniter) is installed in the existing luminaire to ensure optimum operation of the sodium vapour lamp.

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5. What do the product references EC, OM, OG and OF mean?
   • They describe the different forms and output levels of the magnetic ballasts.

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6. What are the potential energy savings in street lighting?
   • For detailed information see our brochure entitled Energy savings in street lighting.

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