I bought one set of 120 Powerbee solar fairy lights 10 months ago, and have not had to recharge them once - all through the winter, even on the dullest, darkest of days, the lights came on bright at dusk. I've got them strung around either side of an arch and they bring the garden to life at night. I'm so impressed that I've bought another two sets for my two daughters in South Africa and I know they won't be disappointed. There are so many rubbishy solar lights around, that it's reassuring when you find a superior product like this. A bonus is that you have the option of charging the solar panel inside, without having to drag all the lights with, if you need or want them brighter in winter, but I didn't find it necessary. I would recommend these to anyone, they're absolutely gorgeous and my neighbours are always commenting.