These lights are really high quality! We hung 2 strands over our backyard patio and used zip ties to secure in the limbs of a huge sycamore shade tree. The solar panels were easy to place nearby for plenty of sun- one places on roof another on carport column. The arm allows for many angles which helps. So far the lights have been very reliant and turn on automatically a little past dusk. They look so pretty- it’s just what I wanted. I’d say they are definitely worth the cost.