Airmen from the 437th Aircraft Maintenance Squadron use a spotlight to illuminate the inside of a hangar at night, so they are able to perform maintenance on a C-17 Globemaster III Feb. 11, 2015, at Joint Base Charleston, S.C. AMXS Airmen work day and night maintaining the Charleston C-17 fleet and use various portable lighting systems to make nighttime maintenance possible. (U.S. Air Force photo/ Senior Airman Dennis Sloan)