Claims
- 1. A lamp unit comprising a mercury-vapor discharge tube and an inductive stabilization ballast for said discharge tube, said ballast forming one mechanical whole with said discharge tube, said discharge tube being provided with at least two internal electrodes, a discharge path between said electrodes being electrically in series with said stabilization ballast, means for applying a voltage which is nominally S volts to the series connection of the discharge path and said stabilization ballast, said lamp unit having only one lamp base, said discharge tube being a low-pressure discharge tube whose arc voltage is between 0.54 S Volt and 0.64 S Volt, said lamp being substantially ballasted by said inductive stabilization ballast, the volume of the discharge space of the discharge tube being smaller than 40 cubic centimeters and said internal electrodes of the discharge tube are of a preheatable type.
Priority Claims (1)
Number |
Date |
Country |
Kind |
7709264 |
Aug 1977 |
NLX |
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Parent Case Info
This is a continuation, of application Ser. No. 934,961, filed Aug. 18, 1978, now abandoned.
US Referenced Citations (6)
Continuations (1)
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Number |
Date |
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Parent |
934961 |
Aug 1978 |
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