Nelson Bubble is a collection of lamps designed by the designer George Nelson in 1952 and produced now by the famous brand Hay. It is made in webbing polymer. Part of the Nelson Bubble Lamp series, the Nelson Apple Bubble Pendant has a sculpted quality with angular twists in its shade. It's designed to delicately float overhead and add charm and personality to any room. George Nelson designed the series in 1952. He was inspired by a set of silk-covered Swedish hanging lamps. Light source:E27 Input Voltage (VAC): 220 - 240V - Input Frequency (Hz): 50/60 Hz - IP20- All Pendants are individually markedOnly use Compact fluorescent energy-saving lamps.