Lot of 12 factory type industrial lamps chrome and black from the 70s. The basic system was sodium lamp type ( complex system, expensive in bulbs and big consumption). An electro technician transformed them to adapt incandescent or led bulbs. They have been tested and all you have to do is fix them when they arrive. Fixation not 2 chains not provided in the batch. The chrome bowls are in good condition and are round shape certified without deformation, they have been cleaned to find their original shine. I also added socket adapters to switch to standard e27 sockets (can be removed to switch to e40). Shipped by carrier only in neat packaging. Sale by lot only.