Although incandescent lighting is sometimes used in vehicles where a controlled beam of light is needed at entrances, exits and passenger seats, fluorescent lighting is preferred for general lighting because of its higher efficacy, lower brightness (important as the lighting of many vehicles is at eye level) and the longer life of the lamp. Reference is made to the power source requirements of fluorescent lamps and the operation needed to convert from the vehicle battery, direct current supply, to a source of alternating current to drive the lamps and associated equipment. Two types of dc/ac converters described are bulk invertors and transistorised invertor ballasts. Commonly used in aircraft and sometimes in trains, bulk invertors are described as being rarely used in other vehicles for they are not often cost effective for a lighting load only. They are also considered to suffer the disadvantage of being the sole ac source, so that a failure of one of its many electronic components results in a complete vehicle blackout. Transistorised invertor ballasts are more generally used for vehicle lighting because of their small size and relatively low price. Operational details are provided for a number of vehicle types, and information provided on circuit design. /TRRL/

  • Corporate Authors:

    Illuminating Engineering Society

    York House, 199 Westminster Bridge Road
    London SE1 7UN,   England 
  • Authors:
    • Connelly, J V
  • Publication Date: 1977-9-10


  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00178606
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 14 1978 12:00AM