Unverified87% confidenceDecision RuleTime unknown

温控器供电方式决定安装难度：需要零线（Neutral）的机型在老房无零线的开关盒无法直接安装，无零线机型靠微漏电取电可能导致LED灯闪烁，购买前务必打开开关面板确认是否有零线

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