Why do we need solar fans
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you know we doen't have unlimited source of energy but we required energy and the old patter to take energy harmful for nature so we use solar energy and etc they are unlimited source of energy.
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Ham Subah Suraj ki kirno se solar ko charge dete hai aur FIR raat mein Ham solar fan chalate Hain isase Hamara current but jata hai I think it is the questions answer
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