Methods/steps:
1 First of all, we need to remove the lampshade. Some lampshades can be removed by rotating, but some lampshades need to be unscrewed along the four corners of the lampshade with the help of a Phillips screwdriver.
2. After taking it off, you can see that one end of the bulb has turned black, and the bulb is no longer bright, so it needs to be replaced.
3. Remove the damaged light bulb. Lever off along the gap between the bulb and the rectifier with a flat screwdriver.
4. It is very simple to pry it open by hand, and then remove the light bulb.
5, as shown in the figure, take out the spare light bulb prepared in advance, and install the light bulb in the opposite way. Remember to check carefully after installation to ensure that the installation is firm.
6. After the light bulb is installed, restore the power supply, turn on the light switch, and check whether the light bulb can be lit.
7. Confirm that the bulb is installed successfully. After the successful power-on test, the lampshade is finally buckled, and you're done.