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你是说开关线盒里没有零线（白线，中性线）？一般/旧式开关虽然不用接零线，但是零线应该拉到线盒里保留

w4b(w4b)

前人DiY省了一根线几毛钱，但是将来智能开关是趋势，比如带wifi的开关需要供电，没白线你装不了

(#15549544@0)
Last Updated: 2023-7-14
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