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1) Tap 1( Up button): turn on the light 

(the last brightness level) 

     Press and hold (Up button): add brightness 

2) Tap 1(

Down button)

: turn off the light                 

 

     Press and hold (“down” button): reduce brightness.

3) Adding your device to Wi-Fi network:

    Please make sure the switch is on the "OFF" position.

    Hold the “down” button more than 10s until the light bulb flashes 

and the

 blue

 LED blinks rapidly to inituate App-configured Mode.

4) If you need to reset the device ( Factory setting)

    Network reset

     1.Turn off the light(when the light is on)

     2.Hold the “down” button until the light bulb flashes 

     ( the 

blue

 LED blinks rapidly)

 

1. Please scan the QR code to download the application “

Smart Life

”. 

2. If you cannot download Smart Life app, please search “

Smart Life

” 

on Google Play (for Android phone) or Apple Store (for iOS phone) to 

download.

3. The smart switch can be also used with

 Amazon Echo

 and 

Google 

Home

. Please scan the QR code below and follow the instructions if 

you have any trouble pairing with them.

QR code

Smart Life

After you download the Smart Life App and register a new account, 

please follow the instructions below to set up your smart switch.

Amazon-Echo

Google-Home

OTHER WARNINGS

Risk of Fire

Risk of Electrical Shock

Risk of Burns

V5.0 

FCC 

This device complies with part 15 of the FCC and Industry Canada 

license-exempt RSS standard(s). Operation is subjected to the 

following two conditions:

(1) this device may not cause harmful interference, and (2) this 

device must accept any interference received, including interfer-

ence that may cause undesired operation.

NOTE:

 This equipment has been tested and found to comply with 

the limits for a Class B digital device, pursuant to Part 15 of the 

FCC Rules. These limits are designed to provide reasonable 

protection against harmful interference in a residential installa-

tion. This equipment generates, uses and can radiate radio 

frequency energy and, if not installed and used in accordance with 

the instructions may cause harmful interference to radio commu-

nications. However, there is no guarantee that interference will 

not occur in a particular installation. If this equipment does cause 

harmful interference to radio or television reception, which can be 

determined by turning the equipment off and on, the user is 

encouraged to try to correct the interference by one or more of the 

following measures:

— Reorient or relocate the receiving antenna.

— Increase the separation between the equipment and receiver.

— Connect the equipment into an outlet on a circuit different from 

that to which the receiver is connected.

— Consult the dealer or an experienced radio/TV technician for help

Important note: 

To comply with the FCC RF exposure compliance 

requirements, no change to the antenna or the device is permit-

ted. Any change to the antenna or the device could result in the 

device exceeding the RF exposure requirements and void user’s 

authority to operate the device.

FCC NOTE: 

The manufacturer is not responsible for any radio or TV 

interference caused by unauthorized modifications to this equip

-

ment. Such modifications could void the user’s authority to 

operate the equipment.

CAUTION - PLEASE READ!

This device (WF31) is intended for installation in accordance 

with the National Electric Code and local regulations in the 

United States, or the Canadian Electrical Code and local regula-

tions in Canada. If you are unsure or uncomfortable about 

performing this installation consult a qualified electrician.

WARNING - SHOCK HAZARD

TURN OFF THE POWER

 to the circuit for the switch and lighting 

fixture at the service panel (circuit breaker) prior to installation.

ALL WIRING CONNECTIONS MUST BE MADE WITH THE POWER 

OFF 

to avoid personal injury and/or damage to the switch. 

The LED indicator flashes 3 times after each parameter setting successfully.)

• LED Indicator Status Setting 

(This parameter can access you to choose the 

led indicator to be on when the switch (light) is on/off, or LED indicator 

remains on/off all times.)

             Value=1 (default)   LED is On when the switch (light) Off and LED is Off 

when the switch (light) On.

             Value=2                     LED is On when switch (light) On and LED is Off when 

the switch (light) Off.

             Value=3                     LED is always Off.

             Value=4                     LED is always On.

   Operation: 

Quickly press “down” button 10 times.

   Please note: 

the switching of each value is in order, a quick press ““down” 

button 10 times will switch once. eg: Switching from value1 to value 4 needs 

3 switchings.

• 

Restores State after Power Failure 

(This parameter can access you to set 

the switch to be on/off after power failure.)

             Value=1 (default)   Memory state before power failure This switch will be 

return to state prior to the power failure after power is restored. 

             Value=2                     The switch is off regardless of the state prior to power 

failure

             Value=3                     The switch is off regardless of the state prior to power 

failure.

   Operation: 

Quickly press “up” button 10 times.

   Please note:

 the switching of each value is in order, a quick press “up” 

button  10 times will switch once. eg: Switching from value1 to value 3 needs 

2 switchings.

• 

Light off State Setting 

(

This parameter can access you to set the light fade 

out or off immeditaly.)

             Value=1 (default)  Fade out

             Value=2                     Instantaneous off

   Operation: 

Quickly press “up” button 8 times

   Please note:

 the switching of each value is in order, a quick press “up” 

button  8 times will switch once. eg: Switching from value1 to value 2 needs 

1 switching.

• Button Function Setting

 

(This parameter can access you to set the “up” 

button 

 to turn the light on/off.)

             Value=1 (default)   The “up” button  turn the light on and “down” button 

turn lights off.

             Value=2                     The “up” button 

 turn the light off and 

“down” button 

turn lights on.

   Operation: 

Quickly press  “down” button 8 times

   Please note:

 the switching of each value is in order, a quick press  “down” 

button 8 times will switch once. eg: Switching from value1 to value 2 needs 1 

switching.

Please Note:  

• Make sure the device is connecting to your 2.4GHz network, and get the password of your network. Cannot connect without a password, set network 

password first.

• Make sure that the light is turned 

" OFF"

 before network configuration(in the case of 3-way installation, 2 switches must be in the 

"off"

 state).

• Please complete operation within 30s when 

" BLUE"  

LED indicator blinks rapidly.

• If you failed to connect  with Wi-Fi network, please try to 

operate several times more.

 If you still can't connect, try 

AP mode

 (refer to the APP connection--AP 

mode part).

B

 

    If you cannot configure it by the default mode successfully, try to 

connect by 

AP mode. 

1 ) When 

the 

blue

 LED indicator

 flashes quickly, press and hold the 

down button for more than 5s until the bulb flashes twice to enter 

the AP mode, and 

the 

purple 

LED indicator 

flashes quickly.

2 ) Click on 

"

is slowly blinking(2s/time)

in the upper right corner. 

3 ) Click "Confirm light flashes."

4 ) Enter Wi-Fi network password.

5 ) Open wireless LAN settings with "

SmartLife-xxxx/ SL-xxxx

".

6 ) Back in the application, continue adding devices and wait for the 

connection to complete.

if you have any questions, Please contact us at

[email protected]

LED Indicator

Red:

 Network failure

Blue:

 Normal Network configuration mode

Orange: 

Light status indicator

Purple: 

AP Network configuration mode

Part 3. Manual Control

Part 4. APP Connection

Part 4. APP Connection

Part 6. Parameter Settings

Hold the “down” button until the light bulb flashes (

blue

 LED blinks rapidly). 

   Please make sure the switch is on the "OFF" position.

  • 

Guidelines for switching between AP Network configuration mode and 

Normal Network configuration mode

:

 Normal Network configuration mode to AP Network configuration mode: 

When the 

blue

 LED indicator

 flashes quickly, press and hold the “down” 

button for more than 5s until the bulb flashes twice to enter the AP Network 

configuration mode, and the 

purple

 LED indicator

 flashes quickly.

  AP Network configuration mode to Normal Network configuration mode: 

When the

 

purple 

LED indicator

 flashes quickly, press and hold the “down” 

button for more than 5s until the bulb flashes 1 time to enter normal mode, 

and the

 

blue 

LED indicator

 flashes quickly.

Part 5. Network Configuration

Minimum Brightness Value Setting 

--- (indicator flashes 3 times after setting successfully)

1: Press the “down” button 5 times quickly, the orange LED breathing flash into 

the minimum brightness setting mode.

2: Press and hold the “up/down” button to adjust the brightness of the bulb, 

and select the appropriate brightness to set the minimum brightness.

3: After selecting, press the “down” button 5 times to confirm, the orange 

indicator flashes 3 times after confirmed.

4: After that, the brightness of the bulb will automatically be adjusted from the 

set min brightness to the max brightness, then from the max brightness to 

the min brightness,  finally stays at the set min brightness. 

5: The minimum brightness setting is completed.

Maximum brightness value setting 

--- (indicator flashes 3 times after setting successfully)

1: Press the “Up” button 5 times, the orange LED breathing flash into the 

maximum brightness setting mode.

2: Press and hold the “up or down” button to adjust the brightness of the bulb, 

and select the appropriate brightness to set the maximum brightness.

3: After selecting, press the “up” button 5 times to confirm, the orange indicator 

flashes 3 times after confirmed.

4: After that, the brightness of the bulb will automatically be adjusted from the 

set max brightness to the min brightness, then from the min brightness to 

the max brightness,  finally stays at the set max brightness. 

5: The maximum brightness setting is completed.

Step 4: 

Hold the “down” button more than 10s

 

until the light bulb flashes and 

 

“BLUE”

 

LED blinks 

rapidly. 

Please make sure the switch is on the 

"OFF" position. 

Step 3: Enter the Wi-Fi Password (Your phone should 

have connected to the same Wi-Fi first).

3-Way switch option 2

Power

Neutral

regular 1

regular 2

common

Load

Line

Traveler

common

From source

Ground

Load

Neutral

Line

Traveler

Neutral

regular 

Load

Line

Traveler

common

From source

1) 

Neutral required

. If the switch box do 

not have a Neutral, please stop! 

Connect the 

white wire to neutral 

terminal 

(use a white jump wire form 

the package or the second hole at the 
terminal to connect.)

2) Insert the Line wire to Line terminal 

and Load wire to Load terminal. 

 

LOAD and LINE Can’t be swapped

please make sure to identify them 

correctly!

3) Install the smart switch in the switch 

box which directly connects to the 

power 

Line and Neutral.

4) Only work with 

regular 3-way on/off 

for 2 locations control. It can only be 

connected with regular 3-way on/off 

switch, 

don't use a smart switch or a 

dimmer switch! Couldn't work with 
an add-on switch!

(Line/Hot and Neutral)

Box 1

(Load)

Don’t replace this 

regular 3-way on/off switch

Box 2

IMPORTANT

OUT TO LIGHT

OUT TO LIGHT

Step 1: 

Tap ‘+’ to add a device in 

your app

Step 2:Select “Lighting ”- 

“Lighting (Wi-Fi)”

Step 5: Reconfirm

Step 6: Select “is fast blinking(0.5s/time)”

Step 7:  Wait for the app to connect to your Wi-Fi 

until it’s 100%

Step 8: Click and edit the name of your new smart 

switch! you can start using it now.

8

7

6

5

4

1

2

3

Neutral

Line

Smart 

Switch

Neutral

Line

common

common

common

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