Answer: There are several considerations about leaving lights in a tree year round. One is that the tree will grow and the wiring may constrict the bark and cause the tree problems. Another is that some localities have restrictions on leaving lights out year round. A third is that the wiring and lights may deteriorate due to exposure to the sun and weather and possibly become unsafe. I would advise that you remove them or at the very least check them regularly during the season.
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