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Installation & setup guide
Everything here is taken from the instruction manual supplied with the switch. The manual’s own words are quoted exactly as printed, spelling and all, in the dark blocks marked Original manual wording. Our own explanations sit beside them and never replace them.
Electrical safety. Installation and wiring must be carried out by a qualified electrician with the power isolated. The correct wiring arrangement must be confirmed for the exact switch model before installation.
The manual prints two separate wiring modes: one for a switch with an “N” terminal and one for single-live-wire working. They are shown here separately, exactly as printed.
INSTALLATION WIRING DIAGRAM
Remove the panel with screwdriver
Make sure the power is off during installation
The switch with “N” terminal supports the following wiring mode
B.Lamp wire connects “L1,L2,L3,L4” terminal C.Neutral wire connects “N” terminal
Switch supports single live wire working can be wired in the following way
A.Live wire connects “L” terminal B.Lamp wire connects “L1, L2, L3, L4” terminal 1 gang connects “L1” terminal 2 gang connects “L1,L2” terminal 3 gang connects “L1,L2,L3” terminal 4 gang connects “L1,L2,L3,L4” terminal C.Capacitance connects first lamp wire and neutral wire.
In our words
Two arrangements, not one
The neutral-wire diagram and the single-live-wire diagram are different circuits. A switch is wired one way or the other, never both. Treat each diagram as applying only to a model confirmed to support it.
In our words
Reading the terminals
“L” is the incoming live terminal, “N” the neutral terminal, and “L1” to “L4” are the lamp outputs — one per gang. On single-live-wire models a capacitor bridges the lamp wire and the neutral wire.
From the supplied manual
Awaiting confirmation
- The live-wire terminal label in the first neutral-wire instruction is not legible in the supplied photograph, so that line is withheld until the supplier confirms the terminal.
- Neither wiring mode has been confirmed for the switches sold in this store. Confirm the arrangement for the exact model before installation.
The switch is set up with the Smart Life app (also published as Tuya Smart). The manual's own download steps are quoted below.
HOW TO DOWNLOAD APP
1. Scan the QR code below or search Smart Life in IOS APP store or Google play.
2. Download & Registration A.Scan the QR code to download “Smart Life” Application B.Enter the register/login interface;input the phone number for getting verification code to register or through other methods at the bottom of page jump to related authorization interface to log in.
Official app listings
In our words
App listings
The two buttons below open the official Apple App Store and Google Play listings, checked on 30 October 2026. The same app appears as “Tuya Smart” in some regions and versions.
In our words
About the QR code
The manual prints a QR code for the app. Its photograph has not been attached yet, so we publish no QR destination of our own — use the store buttons above instead.
From the supplied manual
Pair the switch to your 2.4GHz Wi-Fi network with the switch powered on and the app already installed on your phone.
WIFI PARING METHODS
A.Long press any button of the switch until the blue LED flash quickly.
B.Launch “Smart Life” or “Tuya Smart” app tap “+” icon on the top right corner and choose Switch(BLE+Wi-Fi), Enter WIFI password to start pairing.
C.Finish pairing according to the prompt.
In our words
App screens differ by version
Menu names, icons and the order of screens in Smart Life and Tuya Smart change between app versions and phone platforms. The steps above are the manual's; if a screen does not match what you see, the current app instructions take precedence.
In our words
Before you start
Have the Wi-Fi network name and password to hand. The switch pairs on 2.4GHz Wi-Fi, according to the wireless standard printed in the specifications.
From the supplied manual
For RF-supported models only.
RF Pairing Method ( Switch should support RF )
Long press the button that needs RF control until the button blue LED flash once ( also the build status been changed ), then click any button of the RF remote to finish pairing.
In our words
Which models
The manual makes RF conditional on the model. None of the switches sold here is currently confirmed to support an RF remote, so RF is not advertised anywhere on the product pages.
Awaiting confirmation
- RF support has not been confirmed for any model in this store. Do not buy an RF remote for a switch until the model's support is confirmed.
A reset clears the switch's network settings. It is a different procedure from pairing — use the two together.
Reset Methods
A. Remove the switch by the app directly.
B. Long press any button of the switch about 10-15 seconds until the Blue LED Flash quickly.
In our words
Reset, then pair again
Remove the switch in the app first if you can still reach it. To put it back on the network, follow the Wi-Fi pairing steps above.
SPECIFICATIONS
Specifications printed in the supplied manual.
- Type:
- Wi-Fi Smart Switch
- Rated Current:
- 10A(Max)
- Rated Voltage:
- 100-240V
- Maximum load:
- 1000W
- Wireless Frequency:
- 2.4GHz
- Wireless standard:
- IEEE802.11b/g/n
In our words
One rating, not one per gang
The manual prints a single set of ratings and does not say whether the maximum load applies to each gang or to the switch as a whole. Do not read 1000W as 1000W per button.
In our words
Model confirmation
These values are the ones printed in the supplied manual. They have not been confirmed for each gang size sold here.
Awaiting confirmation
- Per-gang loading and the ratings for each variant are awaiting confirmation from the supplier.
The manual's general notes, quoted as printed. They are manufacturer instructions, not advice verified for every model in the shop.
Basic knowledge
1.Do not connect the input and output reversely.Install correctly 2.If there is a neutral line,the neutral line must be installed. There is no neutral line,a capacitor must be installed 3.The power is too small,generally do not use it below 5W.The power is too large can not used.Specific view product parameters 4.Make sure that the switch is suitable for the local voltage
Awaiting confirmation
- These notes refer to “Suitable for the local voltage” and load limits without stating figures per model — check the specifications block and the model's parameters before installing.
The manual's troubleshooting passages are quoted exactly as printed. They contain wording we have not interpreted for you.
Warm reminder
1.Do not cover glass pannel when power on.The switch will not work when cover glass pannel with power on.Please restart the main power switch at home.It will work
2. Solve the problem of insensitive touch Problem : The switch base is screwed too tightly,a gap between the backlight board and the panel Solution : Don't screw the locking screw too deep,if you can't reach it,you can use a longer screw instead,or fill something between the switch and the bottom box.You pay a little attention during the installation process,the situation that the touch is too sensitive usually rarely happens
Awaiting confirmation
- Both passages contain unclear wording and installation advice. They are shown as the manufacturer's original text and are held for supplier or electrician review before being presented as approved steps.
- “cover glass pannel” and “fill something” are not defined in the manual and are not interpreted here.
The photographs of the instruction manual supplied with the switch. Tap any page to enlarge it, zoom in, or open the original file.
In our words
About compatibility claims
The manual cover refers to Google Assistant and Amazon Alexa. Those are claims printed on the supplied manual and have not been confirmed for the products sold here, so no compatibility badges appear on our product pages.
From the supplied manual
Awaiting confirmation
- The five manual photographs have not been attached yet. Until they are, the page labels below describe each spread but show no image.
Still not working?
Send us the model, the gang count and what the switch is doing, and we will take it from there. Wiring questions are best answered by your electrician on site.