SLS Mini WiFi Smart Switch Module 16A Universal DIY Smart Relay Module
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Product Highlights
- 16A High Load Capacity: Supports up to 16A current and 3500W load for most household appliances.
- No Hub Required: Connects directly to 2.4GHz WiFi without needing an extra gateway or hub.
- Voice Control Support: Fully compatible with Amazon Alexa and Google Home for hands-free operation.
- Compact Mini Design: Ultra-small 41*41*20mm size fits easily into standard wall mounting boxes.
- Flexible Control Modes: Supports APP, voice, timer, and physical manual switch control simultaneously.
- Customization Available: Offers OEM/ODM services including customization from samples and designs.
- Fireproof ABS Material: Constructed with fireproof ABS plastic for enhanced safety and durability.
- Multi-User Sharing: Allows multiple family members to share control and access from different locations.
Product Attributes
- Customization
- Available
- Color
- White
- Connection
- Wireless
- Model NO.
- FS-02W
- Function
- APP Control, Remote Control, Smart Linkage, Timer, Voice Control
- Material
- Fireproof ABS
- Voltage Range
- AC 100-250V 50/60Hz
- APP
- Tuya Smart Life
- Protocol
- WiFi 2.4GHz
- APP Name
- Tuya APP Smart Life
- Operating System
- for Ios, for Android
- Certificate
- CE RoHS
- Operating Temperature
- -10~40℃
- Voice Control
- Google Home Amazon Alexa Echo
- Size
- 41*41*20mm
- Warranty
- 2 Years
- Mechanical Life
- 100000 Times
- Transport Package
- Gift Box
- Specification
- 4.1*4.1*2cm
- Trademark
- SLS
- Origin
- China
- HS Code
- 8536500000
- Production Capacity
- 5000PCS/Day
- Package Size
- 5.00cm * 5.00cm * 3.00cm
- Package Gross Weight
- 0.100kg
- Lead Time
-
14 days (1 - 100 Pieces)
20 days (101 - 500 Pieces)
To be negotiated ( > 500 Pieces)
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
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Product Description







| Model |
Mini Smart Switch Module |
| Input voltage |
AC 100-240V |
| Plastic material |
fireproof ABS |
| Protocol |
WiFi 2.4GHz |
| Start method |
Touch/Mobile APP/Voice Speaker |
| APP name |
Tuya Smart/Smart Life |
| Dimension |
41 * 41 * 20mm |

SaiLingSi (Wenzhou) Electronics Co., Ltd is a manufacturing and trade integrated company dedicated to the R&D and manufacturing of intelligent electrical appliances. With over 30 years of expertise in low-voltage electrical appliances and 6 years in smart home technology. We have 2 factories equipped with automated production equipment, covering an area of more than 12,000 square meters
In smart home technology, we specialize in Smart MCCBs, Smart Switches, Smart Plugs and Sockets. In low-voltage electricals, we focus on Dual Power Automatic Transfer Switches (ATS), Moulded Case Circuit Breakers (MCCB), and Surge Protective Devices (SPD).
We have provided deeply customized smart home solutions to over 100 architectural designers, engineering contractors, and luxury hotel owners in the Middle East, America, Europe, and other countries. We look forward to bringing you and your users the ultimate user experience.
Q1: Does this mini smart switch module require a neutral wire for installation?
A1: Yes it does and this is a Neutral plus Live wire version which provides better stability and constant power for the smart chip
Q2: Can I control this 16A smart relay module without a hub or gateway?
A2: Yes you can as it connects directly to your 2 4G WiFi network so there is no need for you to buy an extra hub
Q3: Is this switch module small enough to fit into my existing wall box?
A3: Yes the ultra mini design allows it to be hidden easily behind your traditional wall switch in most standard mounting boxes
Q4: Can I still use my physical manual wall switch with this smart module?
A4: Yes it is compatible with both rocker and push button manual switches to maintain traditional control while adding smart features
Q5: Does this 16A module support high power appliances like water heaters?
A5: Yes it supports up to 16A current and 3500W load which is suitable for most household appliances and lighting systems
Q6: Can I set a timer to turn off the lights automatically at night?
A6: Yes you can use the Tuya Smart or Smart Life app to set custom schedules and countdown timers for daily automation
Q7: Is it compatible with voice assistants like Alexa or Google Home?
A7: Yes it is fully compatible with Alexa and Google Assistant for a hands free voice control experience in your smart home
Q8: What happens to the switch status after a sudden power failure?
A8: You can set the power on status to On Off or Remember Last Status in the app to ensure your home returns to normal after power is restored
Q9: Can I control one light with two different smart switches like a 2 way circuit
A9: Yes this module supports 2 way control which is perfect for managing a single light from both the top and bottom of a staircase
Q10: How can I reach your support team for technical help or bulk wholesale pricing?
A10: Please contact us through the inquiry portal on our website and our professional team will provide a quote and technical service

About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR2431256". Items marked "" are certified.
Company Profile
SaiLingSi (Wenzhou) Electronics Co., Ltd. Offers variety of smart home IoT products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization. We focuse on intelligent electrical research, development and manufacturing, which is committed to providing customers with safe and reliable electrical products, solutions and high quality services. Our company is specialized in TUYA WiFi & ZigBee 3.0 smart switch, plug&socket, light, sensor&alarm, thermostat, etc. In recent years, with sufficient technical basis, production experience and rapid market response ability, the company has met the needs of customers in different markets and different application places, to provide customers with stable performance, high quality technology and products. With the continuous intelligence of the electrical industry, our company will satisfy the market in the new era and make more efforts to provide users with reliable, stable products and a full range of services.
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- Xiangyang Industrial Zone, Liushi Town, Yueqing City, Wenzhou, Zhejiang, China
-
Plant Area
- 1000 square meters
-
Number of Employees
- 9
-
Registered Capital
- 1,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays -
Nearest Port
- Ningbo Port, Shanghai Port
-
Minimum Order Quantity
- 1 piece
-
Supply Chain Partners
- 10
Our Production Capability & Technical Expertise
-
Main Products
- Automatic Power Transfer Switch, MCCB, Smart Switch, Sensor, Gateway
-
QA/QC inspectors
- 1 people
-
Inspection Type for Finished Products
- 100% inspection(Function inspection & Visual inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 1 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2020-04-01
-
Export Year
- 4 Years
-
Main Markets
- North America, Europe, Southeast Asia/ Mideast
-
Repeat Buyers Choice
- 30%~50%
-
Number of Foreign Trading Staff
- 2
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- Others
-
Cooperated with Fortune 500
- No
FAQ
- Does this mini smart switch module require a neutral wire for installation?
- Yes it does and this is a Neutral plus Live wire version which provides better stability and constant power for the smart chip
- Can I control this 16A smart relay module without a hub or gateway?
- Yes you can as it connects directly to your 2 4G WiFi network so there is no need for you to buy an extra hub
- Is this switch module small enough to fit into my existing wall box?
- Yes the ultra mini design allows it to be hidden easily behind your traditional wall switch in most standard mounting boxes
- Can I still use my physical manual wall switch with this smart module?
- Yes it is compatible with both rocker and push button manual switches to maintain traditional control while adding smart features
- Does this 16A module support high power appliances like water heaters?
- Yes it supports up to 16A current and 3500W load which is suitable for most household appliances and lighting systems
- Can I set a timer to turn off the lights automatically at night?
- Yes you can use the Tuya Smart or Smart Life app to set custom schedules and countdown timers for daily automation
- Is it compatible with voice assistants like Alexa or Google Home?
- Yes it is fully compatible with Alexa and Google Assistant for a hands free voice control experience in your smart home
- What happens to the switch status after a sudden power failure?
- You can set the power on status to On Off or Remember Last Status in the app to ensure your home returns to normal after power is restored
- Can I control one light with two different smart switches like a 2 way circuit
- Yes this module supports 2 way control which is perfect for managing a single light from both the top and bottom of a staircase
- How can I reach your support team for technical help or bulk wholesale pricing?
- Please contact us through the inquiry portal on our website and our professional team will provide a quote and technical service Contact Us for a Quote
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