Warning lamp system with low energy consumption, uses main transformer driven by current source supplying series connected lamp units, each lamp unit having fluorescent tube supplied through transformer

摘要

The warning lamp system has a main transformer (10) with its primary (12) supplied by an AC source and its secondary (13) supplying multiple individual lamps units (14-1 to 14-3) connected in series. Each lamp unit is a fluorescent lamp with an individual transformer (18-1 to 18-3), started by the overvoltage produced when its transformer is supplied and the lamp is non-conducting.