Philips,has offered a new genre of living biological lighting product.The subtle glow is generated by using micro organisms from house hold waste.The concept explores the use of bio luminescent 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. Philips feel this,in addition to indoor usage,can also be used outdoors,for night time road markings, warning strips on stairs or curbs,exit signs,lights for sensors and so on. Sounds interesting,effectiveness can be gauged only after use.
Thanks Sinan for the tip!