1. Needed tools: new daylight tube, Phillips screwdriver 2. First turn the daylight tube to see if it is not working because the light tube is loose, if not, turn the light tube to the bayonet position and remove 3. Then turn the new light tube in the direction it was removed. When you hear the kaka sound, turn it until it stops in the middle position 4. Finally, after installing the two lamps, observe whether they shine. If the lamp shade is covered in normal work, it can be screwed, buckles, glue, ultrasonic welding, etc., in addition to screws and buckles, it can be undamaged.