The lamps are executed with E14 Edison screw fit bulbs. It is wired, and in working condition. It runs both on 110 / 230 volt. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources 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.