"Isang Litro ng Liwanag" (A Liter of Light), is a sustainable lighting project which aims to bring the eco-friendly Solar Bottle Bulb to disprivileged communities nationwide. Designed and developed by students from the Massachusetts Institute of Technology (MIT), the Solar Bottle Bulb is based on the principles of Appropriate Technologies – a concept that provides simple and easily replicable technologies that address basic needs in developing communities.
"Isang Litro ng Liwanag" campaign headed by philanthropist Illac Diaz (the nephew of 1969 Miss Universe Gloria Diaz) turns plastic soda bottles into nifty light bulbs in small homes, which absorbs sunlight and spreads it out inside a house.
A man from San Pedro, Laguna, Philippines shows how to make an alternative light bulb to be used inside the house. For more information on how to help, click to their website below.