If changing a light bulb is a simple and banal gesture, it requires compliance with certain rules.
1. Start by turning off the power at the circuit breaker.
2. Remove the defective bulb and replace it with a bulb of the same type, with base or screw.
3. Make sure to never use a bulb with a power higher than the previous voltage.
4. To avoid polluting, return the used bulb to the dealer or to the recycling center.
For the sake of economy and ecology, consider replacing your bulb with a low-consumption bulb. This uses 80% less electricity and lasts 6 to 10 times longer.