सॉकेट, वर्तमान, ऊर्जा, वातावरण, पर्यावरण संरक्षण, ऊर्जा की बचत, बिजली की खपत, विद्युत प्रवाह, बिजली, विद्युत, ऊर्जा क्रांति
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