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Ling-guang uses the pollution-free clean solar energy as the energy. During the day, it could be stick on the window, keeping out the sun while charging for the solar panels. And then in the evening, let it stick on the inside walls. With the finger gently touching, Ling-guang is lighted, build sweet romantic atmosphere. Ling-light's six sides are equip -ped with light sensor. When a piece light up, the next another piece also will light up. Make switching light become a interesting thing.