The lamp is executed with one e27 edison screw fit bulb. It is wired and in working condition. It runs both on 110 / 230 volt. light bulbs are not included. it is possible to install this fixture in all countries (us, australia, asia, uk, europe,\.) this piece has an attribution mark, i am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution, up to 250v (europe/uk standard).the wiring of this item may be original and might need replacement, if not specified otherwise.