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Keywords: Interior Secretary Ken Salazar (Left) and Energy Secretary Steven Chu (Right).jpg Ken Salazar Left and Energy Secretary Steven Chu Right flip the switch to shine LED lighting on the elm paths of the East side of the mall http //www safetyforreal dk/guide-koeb-bedste-led-paerer-spots Bedste og billigste LED pærer og spots Energy Department Image 2012-01-30 https //www flickr com/photos/departmentofenergy/6792590477/ ENERGY GOV other versions PD-USGov United States Department of Energy |