I bought two of these last time they were on, and the lights are gorgeous, let the bones break very easily, and 4 were out on one of the two sets that I bought before I ever put them up. Replacement bulbs aren’t the easiest to get nor are they inexpensive. Yes I am happy with what I got but, you may not be.
I want to say for the record if these cause osteoporosis, there should be a safety warning. I was going to buy some, but now I am having second thoughts. I broke my nose a few years back and this does not sound very pleasant.