U.S. Air Force Senior Airman Jow Chavez, 633d Civil Engineer Squadron electrical systems journeyman, reads an electrical tester, at Joint Base Langley-Eustis, Virginia, July 26, 2024. Chavez utilized the electrical tester to determine the wires’ voltage before replacing a light, verifying the wires are safe from electrocution. (U.S. Air Force photo by Airman 1st Class Adisen Smith)