This beautiful, simple hanging lamp was made in the 1920s, and it's a truly unique piece. Its design is simple and straightforward, and the craftsmanship is masterful. The canopy is made of solid brass, and it has a special opening for the cable to pass through the side. This lamp is so versatile! you can use it with e26/e27 edison light bulbs, but you'll have to leave out the beautiful glass attachments. It also works great with edison e14 screw-thread bulbs (e12 thread reducers are included for the usa) if you add a glass attachment. I'm so glad to tell you that the original thread adapters are included! i'm sure you're going to love this jugendstil lamp. Its special design makes it almost unique. up to 250v (europe/uk standard).the wiring of this item may be original and might need replacement, if not specified otherwise.