How it Works
The plastic bottle is filled with only water and
bleach. The liquid inside the bottle harnesses
the light from the sun, capturing and diffracting
the light to all parts of the room. It is equivalent
to a 55 watt light bulb.
What's the Technology?
It consists of a 1.5l PET bottle filled with purified
water and bleach (10 ml). A special glue is used
to bond and seal the bottle to the roof.
Adding the bleach to the water makes sure that
the water stays clean and transparent without
algae growing inside and turning the water green.