The lamp comes with 1 x e27 / e26 edison screw fit bulb socket, is wired, in working condition and runs both on 110 / 230 volt. The table lamp is checked, cleaned and suitable for use in the usa. 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, european plug (up to 250v).the wiring of this item may be original and might need replacement, if not specified otherwise.