Plumen, a brand of Hulger, makes designer energy-saving light bulbs. The core product of the brand, the Plumen 001, is named for “plume,” the decorative feathers of a bird, and “lumen,” the unit of light. Its goal was to make low-energy light bulbs more attracive so people would enjoy a better quality of light with a design they could appreciate every day. Plumen also designs pendants and shades made to fit its bulb series.