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HL


    ADVANTAGE

  • higher light output than bulb - up to 25 lm/W
  • longer lifetime (appro. twice as bulbs, depending on bulb type)
  • less blackening of glass body - constant light current during the whole lifetime

    DISADVANTAGE

  • limited lifetime - approx. 1.500 - 3.000 h (depending on bulb type and voltage)
  • reduced lifetime with
  • blackening of glass body with increasing lifetime
  • "yellow" light
  • relatively high loss of light energy when penetrating coloured lenses




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