Airman 1st Class Kristoff Chin, 341st Civil Engineer Squadron electrical systems apprentice, fixes an emergency light in the fitness center March 13, 2017, at Malmstrom Air Force Base, Mont. The electrical team is replacing more than 12,000 lamps on base at nine facilities with LEDs, and they have already completed three of the nine buildings. (U.S. Air Force photo/Airman 1st Class Daniel Brosam)

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Photo by: Airman 1st Class Daniel Brosam |  VIRIN: 170313-F-DB969-0020.JPG