Unverified85% confidenceTradeoffTime unknown
零火线调光器带载能力和稳定性远优于单火，若新装修或墙内有零线，优先选零火方案避免频闪
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85%
Confidence
Long-term
Relevance
-
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Partially Verified选购前必须确认墙内是否有零线：老房子多为单火线布线，只有火线进开关盒。零火版智能开关需要零线供电，稳定性远高于单火版；单火版靠微弱漏电取电，接LED灯时易频闪、鬼火、无法关断82% similarUnverified接线式温控器需确认供电方式：单火线(2线)温控器无零线容易造成灯光频闪或无法带屏，有零线(3线)更稳定，老房子多为单火线，改造前先确认底盒有无零线79% similarUnverified老房改造若接线盒内没有零线（只有火线单火），必须选单火版智能开关，或选带电容/储能方案的单火产品，否则WiFi版无法稳定供电，会出现指示灯闪烁、频繁掉线77% similarUnverified嵌墙式智能面板首选零火线供电（86盒需预留零线），无零线场景选带电容储能款或改用无线电池款，纯火线取电面板长期驱动大屏易出现闪屏、频闪问题77% similar
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