I purchased two strings about 6 months ago. They were easy to set up & use. While not the brightest, they worked in the string-light setting on the handrails around my patio as I hoped. Unfortunately, one string stopped working after about 3 months of use. I had purchased the extended warranty but couldnt find its details, so I called Pulsetv customer service and spoke with a very helpful assistant. She agreed to send me a replacement set immediately--and I received it promptly. After setting it up, I purchased four more string sets to extend the lighting along my walking path. While they dont stay lit all night long, they light up long enough through the evening so that they provide light when I need it. Plus....solar power, so no having to hook them up to the house. Im very satisfied.