How to change a light bulb?
Everyone can change a light bulb. Just follow this procedure:
1. Turn off the circuit breaker.
2. Unscrew the old bulb.
3. Screw the new bulb into the threads of the luminaire.
4. Make sure the new bulb is firmly seated in the thread. Tighten carefully so as not to damage it.
5. Turn on the circuit breaker.
6. Test that the bulb is lit. If not, contact an electrician.