Many thanks to the Solar Centre for our superb lights. I got them last year and they twinkled away beautifully over the Christmas period. So easy to set up, simple to charge, and the solar panel sensor means they only use battery power when it's dark. Genius. When I got the lights out this year, they didn't work. All it took was an email to the Solar Centre, a reply with easy-to-follow instructions which helped us to work out the fault was with the lights rather than the battery, and a replacement string of lights was with me in a few days. Absolutely first class service. Thanks Solar Centre!