Rare industrial prismatic lamp that was made by Holophane during the 70's and 80's. The lamp has been converted so that it can be used with regular E27 bulbs and I've removed the heavy electronics from inside the lamp to reduce the weight. I also have some of these in original form (E40 screw fit for 250W metal halide bulbs) so let me know if that is what you would prefer. Will be suppled with twin and earth cable so that it can be wired to existing ceiling rose. Could also supply with plug if preferred.