Ian Somerhalder Ian Somerhalder

Ian Somerhalder isn't just a pretty face (or the brooding Damon Salvatore on The Vampire Diaries). He's also an active philanthropist.

Recently, he signed on to as the spokesperson for Cree's LED light bulbs, an energy-efficient, mercury-free bulb. Somerhalder invited TVGuide.com to go behind the scenes of his photo shoot for Cree, where he explained how fame has awarded him the opportunity to pursue his passions.

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" The Vampire Diaries has given us ... this ability to speak about things that we love, whether it's LED lightbulbs or it's conservation, whether it's habitat or species," Somerhalder said. "It's allowed us to have a really phenomenal presence in Washington, D.C., and working with the upper echelons of the executive branch of the government."Watch Somerhalder ham it up for the camera below.