 In 2007 Hulger launched the Plumen project, an alternative design concept challenging the lack of diversity in CFL, or low-energy light bulbs.The project proposes that by making more interesting and attractive bulb shapes out of the tubular formation of the CFL bulb people will be much more likely to buy and use them.The first Plumen concept and working prototype of the CFL bulb was included in MoMA New York's permanent design collection in 2008.