These string lights have been perfect for our outdoor porch area. Because our our southeastern exposure, I had concerns the solar power would be able to charge these strong lights efficiently. I was so happy to see this was not the case. In fact, as far as I can tell, the lights last well over 12 hours, which is amazing! The cord length was also very important, as we dont have any outlets outside. My only drawback is the color of the light itself, Its a bright green hue, which I didnt expect. Overall, I am very happy though with the overall look and function. We really love these lights!