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The lamp is a typical "readymade"
product, using PE plastic bottles as shock and water secure
casing. The cork as a intuitive on and off switch.
The production was a research into cost-effectiveness
in design, with no expensive tools or investments. The
groundwork for a industrialized version.
Battery lifetime is 72 hours. And the light is strong
enough for reading.
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The ruggedness was proven when a group of german punx
played football with a 20L in the night, during the Roskilde
festival 2004. The lamps was still functioning at the end,
in spite of being totally deformed and muddy.
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