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Jackie Duemler shows how Duke Energy light bulbs need less energy by pedaling a stationary bike Friday at City Hall. Duemler is a participant of the nation wide enery challenge that is sponsored by George Town University.
Jackie Duemler shows how Duke Energy light bulbs need less energy by pedaling a stationary bike Friday at City Hall. Duemler is a participant of the nation wide enery challenge that is sponsored by George Town University.