Air Force Senior Airman Robert Haehnel, 380th Expeditionary Civil Engineer Squadron electrical specialist, replaces old incandescent light bulbs with new energy efficient light-emitting diodes (LED) bulbs on Al Dhafra Air Base, United Arab Emirates, Jan. 29, 2018. The 380th ECES electrical squadron has replaced more than 2,000 incandescent light bulbs with energy efficient LEDs. ( Air National Guard

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