The Bubble Lamp (1952) began as a contemporary version of silk-covered ball pendant lights. Inspired by the process the military used to mothball ships, design director George Nelson fashioned a circle from steel wire, placed it on a spinning turntable, and then shot translucent plastic at the sphere until it was fully covered. Thus, Nelson's "ball light" — and ball wall light — were born. Bulb (not included): LED, CFL, or incandescent; E26 base; 150W. UL Listed.