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Always working solar lamp – Part 1: the data
Intro Everybody knows them: solar garden lamps. They work quite well during summers, when there is a lot of sun, days are long and nights are short. But come winter nights and you barely get anything from them. So i thought, what would it take to make a solar lamp that can always run when it is dark, winter or summer? In fact, this ties into a more general question: how do I size a… Continue reading