London artwork that fights SAD

23 November 2011 Last updated at 01:28 ET Help

A new light sculpture has just opened to the public in London, which aims to fight Seasonal Affective Disorder (SAD).

The work, called The Summer Shelter Retreats Darkly Among The Trees, is by US artist James Yamada and is on show at the Parasol unit in north London.

BBC World Service Science reporter Matt McGrath went to test it out.

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