An external-electrode discharge lamp has a light-permeable, electrically
insulative outer casing having a closed hollow space defined therein. A
discharge medium is sealed in the outer casing. An external electrode is
disposed on an outer surface of the outer casing for causing a dielectric
barrier discharge in the discharge medium. The external electrode
comprises a plate of an electrically conductive material and is brazed to
the outer surface of the outer casing by a brazing material disposed
fully circumferentially on the outer surface of the outer casing.