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arc lamp
discharge lamp in which the light is emitted by an arc discharge and/or by its electrodes
Note 1 to entry: The electrodes can be either of carbon (operating in air) or of metal.
Note 2 to entry: This entry was numbered 845-07-33 in IEC 60050-845:1987.
Note 3 to entry: This entry was numbered 17-55 in CIE S 017:2011.