How to remove the display light at the entrance of the hotel if it doesn't work?

It is recommended that you do not dismantle it yourself, and find professional maintenance personnel to handle it.

1. Turn the lampshade counterclockwise, remove the lampshade, and then remove the annular tube. Most of the reason is that the ring tube is broken. Try a new one. If it still doesn't light up, change the ballast. Pay attention to turn off the power supply during operation. If you are not sure, you'd better find a master to install it.

The lamp tube is broken and the circuit is broken. The reason why the electric tube of the circuit is broken may be that the sealing degree of the light box is not good and there is water leakage. It may also be that the lamp tube has been used for too long and is damaged by aging. If the sealing degree is not good, check the sealing place. If the lamp tube is aging, it can be replaced.