Philips Bio-Light Concept, using bacteria as an energy source

Here, Philips has shown off a concept for a light that runs on not grid electricity, not solar power, not even wind power.

"The concept explores the use of bioluminescent bacteria, which are fed with methane and composted material (drawn from the methane digester in the Microbial Home system). Alternatively the cellular light array can be filled with fluorescent proteins that emit different frequencies of light."

Tree Hugger