The frequency of cleaning and maintenance for apartment exterior light fixtures may depend on various factors such as the local climate, the type of fixtures, and their exposure to elements. However, as a general guideline, it is recommended to clean and maintain apartment exterior light fixtures at least once or twice a year. This can help ensure optimal performance, prevent dust buildup, and prolong the lifespan of the fixtures. Additionally, it is advisable to check for any loose screws or connections during the cleaning process and replace any faulty bulbs or parts as needed.
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