ooh ooo

I wish you have a multimeter to measure as I'm curious to know.

What is the problem? I'd suspect the resistor the least unless you notice any discoloration. It could happen but extremely rare in my experience. Active component is what you look first.

So you have multimeter. No wonder you color blind

Then it is 4 band but I still can't find out what the white is for

Firstly, I'm not zigbee user.

I would not worry about that. Zigbee operates basically in two modes, beacon and non-beacon. In beacon, the zigbee transmit signal to check its network on interval. However the transmission time is very minimal like 30ms. Even your wireless mouse also interfere with your laptop WiFi at 3s period. See how it affect WiFi since your mouse is moving most of the time

In non-beacon mode like light switch mostly, the end device continuously listen to transmission. This require a bit more power but the end device is powered by power line. So, no problem. No transmission until necessary. It is using CSMA/CA, transmit only when no other transmission.

In the fight of superiority, the one with stronger signal win and in most cases zigbee

Well, I was just joking around

In wireless network, there is theoretically no data collision. Nodes transmit data when the nodes sense no carrier when they are about to transmit data. Since it is packet network, there are time slot to transmit in between transmission.

Sorry. I would say that zigbee only talk once in a while. Like yes, no maybe..... short answer. It is not like download or streaming movie on your phone. So, you won't notice zigbee is also running on 2.4GHz like idoblu said.

The 20A touch smart switch is too expensive I think or should I say over-priced.

http://eshop.vivalec.com/index.php/etouch-...ter-heater.html

The more economical approach would be using normal touch switch in combination with sonoff POW that handle 16A. Should be able to handle 1HP air-con and 3kW water heater.

There are 2 methods of wiring. The wiring diagran here is old method. The new one is using 3 wires between switches. Are yours using 2 or 3 wires? Mine is using 3 wires. More flexible.

You can read here:

https://circuitdigest.com/electronic-circui...ay-light-switch

If you are just looking at the purpose to toggle the light, then there is no difference. You just flip the switch either way to turn on or off the light. If you look at the logic table, the light will be on only if both switches are in same state. Both switches have to be off or on position to turn on the light. If either one switch is in opposite state, the light is off.

For 2nd diagram (3 wire diagram), the switch will behave like normal switch. If you on either switch, the light is on and if the switch is off either switch the light is off. However, if you flip both switches on, the light will be off, but this is unlikely because if the light is already on, why would one wants to flip the switch?

One advantage of the 3 wire system is that you will have access both L and N at either switch if required. You will not have problem to replace with smart switch that require N wire.

Look carefully. The first one, there are 2 wires connect between two switches. The other one has 3 wires between two switches. Ignore the wire to the lamp because it is on the ceiling

SO, I think you have 3 wire at both switches. It is just that the wiring connection is different. If 2 wires, no way it will behave like normal switch.

Maybe you imagine the wiring differently but it is wired like the 2nd diagram? Maybe can try sketch on paper on possible wiring

Not sure how you count wire. There are only 2 wires between those switches. If you count total wire, then there are 4 wires

I see what you mean. If you cross the wire, you can also make switch looks like normal. It is just that you will not have both L and N point on each switch. The switch will have either L or N only

Ok agreed. I was ignoring the bulb

When they talk about 2 or 3 wires, they are counting the number of wire that interconnect between two switches, not number of wire at each switch.

It is because the US people want to differentiate the SPST switch with the SPDT switch. Once mounted both switch looks the same and the SPDT switch can be wired just like the SPST switch.

The British called it 2 way because they are talking about using 2 switches to control a single light. The American is looking at the switch side, not the lamp side. So, calling it 3-way switch. Another person would say because the switch has 3 terminal to connect... either one.

In average, Americans are just dumb or simple minded people (true story). The easy way for them to remember is to just look at how many terminal the switch has. The SPDT switch has 3 terminals to connect the wire. So, they just call it 3 way switch. To control 1 or 2 or 3 bulbs are not their main concern here. Wiring is different story. When they go to the shop, they just tell the shop that they want 3 way switch. The convention SPDT (Single Pole Double Throw) is technical term, not layman term.

Sometimes the shop name has .my to confused you but it is from overseas. There are sellers that said ship from Balakong (for example), but order is actually shipped from China. I guess from China shipped to local seller and then put into PosLaju to ship to you. If not I wonder how they assigned the PosLaju tracking number once the order leave China

I order from Shopee several times. Once you order you can see the status on your phone apps. Once the seller shipped out the goods from China, you will be given PosLaju tracking number immediately. I use another apps for tracking out of the Shopee tracking system.

Once the goods reached KLIA, the PosLaju tracking number is triggered already. I'm not sure how. Last time I thought local seller ship out once the goods reach them, but it can't be because KLIA. Most likely that Shoppe operates from KLIA bonding warehouse. Shopee can assign the PosLaju tracking number. Shopee can purchase a bunch of number from PosLaju before hand, just like you buy PosExpress envelop, I think.

I don't have bad experience. Look for good rating seller and see comments from customers. Many I dealt with were responsive. I just chat through Shopee as recommended. They even reply at night.

At least order from cc get MSOS confirmation. On AliExpress, straight charge even though I immediately cancel. I get refunded but lost RM2+ due to exchange rate on refund day exchange rate I guess. I found many prices in Shoppe are probably cheaper than AliExpress (maybe just by chance looking at cheaper shops). Using desktop, the price is in MYR not USD like AliExpress. So, not fluctuation due to exchange rate.

Last time I use Lazada but then move to AliExpress and now more to Shopee.

I did not know Banggood has that kind of warranty. Like most in from China like Lazada, AliExpress and Shopee, I think warranty is probably within 1 week after receiving just to cover in case you received faulty unit.

I look at Banggood before and price is usually cheaper but I've never dealt with them. Maybe I always get confused with IndiaMart. Bang.... sounds like Banggalore

Maybe I should start browsing Banggalore. At least I have good reference now