Do our light switch have neutral wires?
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 Oct 2 2021, 02:55 PM
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#1
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Senior Member
3,026 posts Joined: Oct 2004 From: KL, Penang & JB  
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Recently I bought ZigBee smart switch that works with both neutral or no neutral. No need to install any capacitor at all even though my setup is no neutral. Just replace the switch and done. It's a 3 gang switch connected to fan, led downlights and t5 L box light. No flickering so far 😁
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Oct 2 2021, 10:04 PM
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#2
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Senior Member
3,026 posts Joined: Oct 2004 From: KL, Penang & JB
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QUOTE(lyt25_1234 @ Oct 2 2021, 04:57 PM) If your lights are of higher than 5W, then high chance you won't see it flicker. Not necessarily, some switch specs says minimum 10w. Read alot of shopee comments saying having flickering issue. Better confirm the specs before buy to avoid disappointment The switch I bought specs says minimum 3w to avoid flickering issue. The best part is no neutral and no capacitor needed 😁 |
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Oct 3 2021, 01:01 AM
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#3
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Senior Member
3,026 posts Joined: Oct 2004 From: KL, Penang & JB
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QUOTE(adamw @ Oct 2 2021, 10:46 PM) Update us in 6/12months see got issues or not :thumbsup: Sure, if I remember la 😂Dunno how reliable are these smart switches. I read in the unified thread, those expensive terncy with neutral also died within a year 🤦♂️ |
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Oct 3 2021, 04:57 PM
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#4
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Senior Member
3,026 posts Joined: Oct 2004 From: KL, Penang & JB
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QUOTE(XweienX @ Oct 3 2021, 04:42 PM) so I'm assuming this is using the variable resistance method? Sorry, this switch not for is not dimmer switchSo far I see ZigBee dimmer switch does require neutral. |
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Oct 3 2021, 11:26 PM
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#5
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Senior Member
3,026 posts Joined: Oct 2004 From: KL, Penang & JB
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QUOTE(XweienX @ Oct 3 2021, 10:53 PM) no no, I meant the way non neutral smart switch work. I read somewhere that the way they keep the smart switch "on" in non-neutral connection is by using a variable resistor. So when it is physically turned off, the switch will have high enough resistance to prevent the bulb from lighting up but still enough current to keep the chip powered. Oic, not sure about that though. Here's the link, maybe you can read up what the spec mentioned or you can contact the seller. Seller quite responsive with questions. https://shopee.com.my/product/372243380/996...45-1633274766.9 |
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Oct 22 2021, 08:30 PM
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#6
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Senior Member
3,026 posts Joined: Oct 2004 From: KL, Penang & JB
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Bought additional switches since quite happy with the initial switch performance 😁
The dimmer switch looks and feels nice 
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