So­lar Bot­tle Bulbs Light Up Dark Homes

Southern Innovator - - WASTE & RECYCLING -

The “Moser Light” in­volves tak­ing plas­tic bot­tles, which are usu­ally just thrown away or re­cy­cled, and fill­ing them with wa­ter and bleach to draw on a ba­sic phys­i­cal phe­nom­e­non: the re­frac­tion of sun­light when it passes through a wa­ter-based medium. Brazil­ian in­no­va­tor and me­chanic Al­fredo Moser has taken the com­mon plas­tic wa­ter bot­tle and cre­ated a low-cost light­ing so­lu­tion for dark spa­ces. Of­ten makeshift homes lack de­cent light­ing or a good de­sign that lets the light in dur­ing the day. This means that it may be a bright, sunny day out­side, but in­side the home or work­place, it is very dark and read­ing or work­ing is dif­fi­cult.

It is a sim­ple idea: Holes are drilled in the ceil­ing of a room and the bot­tles are placed in the holes. The liq­uid-filled bot­tle am­pli­fies the ex­ist­ing sun­light (or even moon­light) and projects it into the dark room. This turns the plas­tic bot­tle into a very bright light bulb that does not re­quire any elec­tric­ity.

Moser uses a so­lu­tion of two cap­fuls of bleach added to the wa­ter to pre­vent any­thing grow­ing in the wa­ter such as al­gae be­cause of the ex­po­sure to sun­light.

“The cleaner the bot­tle, the bet­ter,” he said.

Polyester resin is used to seal the hole around the plas­tic bot­tle and make it wa­ter­tight from rain.

Moser’s bot­tle in­no­va­tion can pro­duce be­tween 40 and 60 watts of light.

Liter of Light, run by the Myshel­ter Foun­da­tion, of­fers in­struc­tions on how to in­stall the light­ing sys­tem on its web­site. – (Septem­ber 2013)

How to make the “Moser Light” (above) and the light in­stalled in the roof (right).

How to as­sem­ble the “Moser Light”.

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