The product is sturdy and seems well made. After about 4 months of use, their battery life has noticeably dwindled. I like their look, but am dubious regarding their longevity. We'll see...UPDATE: Apparently the dwindled battery life was the result of the shorter days in the fall and winter. I am now into my 2nd year, and they are still doing well. The advertised life expectancy is 3 -5 years. We'll see..