タイトルまたは説明

Solar flashlight, for example, if there is no built-in battery, you can only let it lighting in the sun light. Should not be many people will make such a move. Solar energy products, the main design concept is to drive product  by unstable, a small current of electricity produced by solar panel stored in batteries. When needed to provide a stable electrical drive power. Every second of current  solar panels produced may be small. But Long accumulated enough power to electrical power. Because we are not a lot of electronic products *4 hours a day to work, we usually use the flashlight lighting time to time is not very long.