Blubb glass table lamp - handmade in Germany Mouth-blown Glas is the material that plays a prominent role in the Blubb table lamp. In terms of form, Blubb is designed so that the lampshade and frame merge into one another and the entire light is almost literally cast from a single mould. However, it is not directly cast, but blown into shape. The artistic processing of the Glas takes place in the manufactory of next, a designer light manufacturer, in Cologne. The integrated intermediate cord dimmer allows the brightness to be individually adjusted. Please note that only LED bulbs may be used in the Blubb table lamp. The diameter of the bulb must not exceed 11 cm. The Blubb table lamp was designed by Munich-based designer Constantine Wortmann. He has worked almost exclusively for next for many years. Before designing for the Cologne-based lighting company, he had already worked for Ingo Maurer, one of Germany's best-known lighting designers.