This is an Industrial ceiling lamp by Raak, Amsterdam. It features a black, minimalist, square metal structure, and a acrylic glass pyramid diffuser. 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.