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單火 零火 – 咩意思, 點揀?

Posted on 2021/08/232021/08/23

想用無線開關, 最好用零火. 用唔用得要睇電佬當初線點拉.

如果neutral線唔經開關制(第二幅圖), 就一定要用單火了. 好多時燈果組電都唔經, 因為方便佢地.

單火有機會唔穩定, 可能會閃亦有可能無啦啦自己開關.

駁電有一定危險. 跳制, 燒開關, 唔知安唔安全日日擔心都唔好. 自己決定了.

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