The luminous characters are installed outdoors, so they are exposed to wind and rain all year round. It's easy to get dirty, so it won't look good if it's dirty. At this time, we need later maintenance and repair work. For some non professionals, if they don't understand later maintenance and repair work, it's easy to cause the damage of glowing words and the occurrence of non glowing phenomenon. Then we should pay attention to these aspects in later maintenance:

1. Use dry things to remove the sundries on it, and do not use things with water to wipe it.

2. Do not try to move the installed luminous words during maintenance, otherwise it is easy to cause the power line to break or the fixed words to shift.

The above two aspects must be paid attention to in the later maintenance process.