Safely replacing an electrical component fundamentally requires isolating the circuit to prevent electrical shock or thermal injury. Therefore, the initial step is to de-energize the circuit (turn the lamp off). Once isolated, the hazardous or defective component is removed (unscrew broken bulb). The replacement component is then installed into the unpowered socket (screw in working bulb). Finally, the circuit is re-energized to verify operational integrity (turn lamp on). This sequence aligns with standard de-energization and component servicing protocols.

Occupational Safety and Health Administration (OSHA). (2024/26). Standard Number 1910.333 - Selection and use of work practices. U.S. Department of Labor. Section (b)(2): "Lockout and Tagging" (outlining the fundamental requirement to de-energize and verify equipment is safe before servicing or replacing parts).

Massachusetts Institute of Technology. MIT OpenCourseWare: 6.101 Introductory Analog Electronics Laboratory, Spring 2024/26. "General Laboratory Safety Guidelines." Section 2.1: Electrical Hazards (detailing the necessity of disconnecting power sources prior to modifying any circuit elements or components).