Having a really nice time in your patio will be so much nicer when you have no visionary trouble. By visionary trouble, it means that you cannot see clearly when you are relaxing in your patio at night. Your relaxing nights will turn to something not cool when you cannot see in the dark. It is true that you still can see in the moonlight, but all the things you see will not be seen really clear. That is why you need to set patio light strings into your patio set.