In the first test with a prior bright blue sky the fairy lights kept its promises. the following days it was cloudy and the batteries are no longer charged geügend. On the first day, the LEDs lit only about two hours, the second they glowed only. Conclusion: The solar panel is insufficient capacity for 200 LEDs. I've been watching the lighting behavior now a few more days, the lights chain will however probably return. I can currently difficult to imagine that the batteries in the winter and gloomy autumn days are charged by the solar module enough for me.