Seeking energy efficiencies

The Secluded Bay at the Shedd Aquarium where these dolphins are swimming is mostly lit with new LED lights but some of the old ones have not yet been replaced.

( Nancy Stone, Chicago Tribune / January 24, 2013 )

The Secluded Bay at the Shedd Aquarium where these dolphins are swimming is mostly lit with new LED lights but some of the old ones have not yet been replaced.

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