Tasked with helping poor communities in developing countries through simple and appropriate innovation, they developed a solution for the millions of people in Manila who live in settlements so cramped that all natural light is blocked out of their homes.
The solar bottle bulb comprises a 1 litre soda bottle filled with a solution of purified water and bleach inserted into a hole drilled in the metal roof. The water helps disperse the light through refraction, so the light is not concentrated and the solar bottle bulb can light up a room.
At a cost of $2 – $3 per bulb – it’s taking the Philippines by storm with the goal of installing the bulbs in 1 million homes by 2012.
What a fantastic way to dispel the common myth that innovation means new categories, new products and big bucks investment in leading edge technology – we can all learn from this!