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. Provides soft, glowing light. Transparent plastic polymer shade with visible steel infrastructure. Organic shape. Brushed, nickel-plated steel details. Materials: Steel frame with a translucent plastic polymer shade and brushed, nickel-plated steel details Dimensions: 16⅝ H x 12⅝ W x 15¾ D inches; Shade Diameter: 12¾ inches Cord Length: 12 feet Weight: 7 lbs Light Source: LED, CFL, or incandescent; E26 base; Max 150W. UL Listed. Bulb (not included) Downloads: Herman Miller Warranty Information