A most iconoc work of ambiental art, designed by legendary german designer richard essig for "essig leuchtung-germany", the long lost and considered extinct "essig's lava lamp"\.\. A pure mid century, postmodern design, most likely the best essig design ever. crafted out of chromed metal alloy, sumptuously adorned with mouth blown bi-color glass shade, emitting a most pleasantly refracted light. uses one e27 light bulb\. For a warmer/goldish light, 2700k or less led light bulb need be used, while for a whiter/colder light, 4000k or higher led light bulb can be used. measurements: height (adjustable)-40cm to 85cm (15.74 inches to 33.5 inches), shade diameter-30cm (11.8 inches). in impeccable, museum like condition, complete, perfectly functional. This piece is designed in the style of the selected designer and/or manufacturer, up to 250v (europe/uk standard).the wiring of this item may be original and might need replacement, if not specified otherwise.