The Plumen is the world's first designer energy saving light bulb. Make the bulb attractive and people will spend a bit more and enjoy a better quality of light and a design they appreciate every day. Glass tubes can be bent is many different shapes so why are there thousands of manufacturers but only three designs? Plumen aims to address the problem. The name Plumen comes from the “plume,” the decorative feathers of a bird and “lumen,” the unit of light.