A small amount of water vapor may be generated
1. Large temperature difference leads to condensation of water vapor inside and outside the lampshade.
2. In low pressure areas, water vapor is easy to accumulate and condense in winter.
How to solve the water vapor problem:
1. Check whether the air vent is blocked. Turn on the low beam for about 20 minutes, and check whether the air vent is blocked, so that the water vapor cannot be discharged normally.
2. Take out the lamp bulb and wipe the inside dry before putting it back.
3. Put the silica gel desiccant into the shell for moisture absorption treatment.