Flame Arc Lamp
High current density arc lamp with carbon electrodes containing other substances which, volatilizing in the flame, contribute to the radiation so that the spectral distribution is altered or the luminous efficacy improved.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
Celsius (previously Centigrade)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM