Introduction — Addressing the Need, Application Scenarios

As smart lighting systems continue to evolve, users now expect more than simple on/off switching and basic brightness control. Today's lighting demands seamless management through mobile apps, remote controls, smart wall switches, or voice assistants.
For LED lighting systems built on Triac dimming technology, a highly compatible, stable, and easy-to-install smart dimming controller is essential for upgrading traditional lighting into a truly intelligent system.
The S1-B(WT) Triac Smart Dimmer Controller is purpose-built for dimmable LED fixtures, transforming conventional AC Triac dimmer systems into smart lighting solutions. As a WiFi Triac Dimmer Controller, it supports multiple control methods and is well suited for residential, commercial, and LED lighting retrofit projects.
Residential Smart Lighting
Ideal for residential smart lighting systems, this Smart LED Dimmer enables brightness adjustment via mobile app, voice assistant, or smart wall switch — delivering a more comfortable and convenient lighting experience for homeowners.
Commercial Lighting Projects
Suited to hotels, restaurants, offices, and retail spaces, precise dimming meets the lighting demands of diverse environments while enhancing ambience and energy management efficiency.
Architectural & Hospitality Lighting
Applicable to hotel lobbies, exhibition halls, high-end residences, and architectural lighting projects, intelligent dimming creates versatile lighting effects that satisfy the comfort, functionality, and design standards of modern spaces.
LED Lighting Retrofit
As a lighting upgrade solution, this Tuya Smart Dimmer connects existing dimmable LED fixtures to a smart control platform without requiring replacement — bringing conventional Triac dimming systems into the smart era.
WiFi Triac Dimmer Controller

 

What Is the S1-B(WT) WiFi Triac Dimmer?

The S1-B(WT) is an all-in-one AC Triac Dimmer that combines WiFi, RF wireless control, and push-dim functionality in a single WiFi Triac Dimmer Controller.
Designed for single-color dimmable LED fixtures, it delivers smooth 0-100% dimming and supports:
· Tuya Smart App
· Amazon Alexa
· Google Assistant
· RF wireless remote control
· External wall switch control
As a versatile RF LED Dimmer, it bridges traditional Triac dimming systems with modern smart lighting platforms through multiple intelligent control methods.
s1 b dimmer s1 b triac dimmer  AC Triac Dimmer

WiFi & RF AC Triac Dimmer Technical Specifications

Parameter Specification
Product Type WiFi + RF + Push Dim AC Triac Dimmer
Input Voltage AC100-240V
Output Voltage AC100-240V
Output Current Max 1.5A
Output Power 150-360W
Control Distance 30m (Barrier-free)
Dimming Range 0-100%
Dimming Level 256 levels
IP Rating IP20
Working Temperature -20℃ ~ +55℃
Case Temperature Max +85℃
Size 60×60×40mm
Warranty 5 Years
Certification CE, RoHS

Key Features of the S1-B(WT) Controller

● WiFi + RF + Push-button AC Triac Dimmer with single-channel output.
● Designed for switching and dimming control of single-color dimmable LED fixtures, as well as traditional incandescent and halogen lamps.
● Supports cloud control via the Tuya Smart App, with on/off switching, brightness adjustment, delayed on/off, timer, and scene mode functions.
● Voice control compatible with Amazon Alexa, Google Assistant, Tmall Genie, and Xiaodu Assistant.
● Smooth 0-100% dimming across 256 levels, flicker-free.
● DIP switch selectable for leading-edge or trailing-edge dimming mode.
● Minimum brightness level adjustable via push-button.
● Selectable fade time (3 seconds) for on/off transitions.
● Compatible with RF 2.4G single-zone or multi-zone dimming remotes.
● The S1-B(WT) can also function as a WiFi-RF converter, allowing synchronized control of one or multiple RF LED controllers or drivers through the Tuya Smart App.
● Connects to an external push-button switch for on/off and 0-100% dimming control.
● Easy to install in a standard wall junction box behind a push-button switch.
● Built-in overheat/overload protection with automatic recovery.
 
WiFi AC Triac Dimmer

 Why Choose the S1-B(WT) WiFi Triac Dimmer Controller

High Compatibility with Existing Lighting Systems
The S1-B(WT) is purpose-built for Triac-dimmable LED lighting systems, offering stable compatibility with a wide range of Triac dimmable LED drivers and lighting products. It enables customers to upgrade traditional lighting into a smart lighting solution without replacing existing fixtures.
Cost-Effective Smart Upgrade
Compared to replacing an entire lighting system, the S1-B(WT) offers a cost-effective retrofit path by adding smart control capability to existing Triac dimming systems — reducing both installation complexity and project cost.
Flexible Control for Diverse Applications
As a Dimmable LED Strip Controller with support for WiFi app, RF remote, wall switch, and voice assistant control, the S1-B(WT) meets the needs of residential, commercial, and hospitality lighting scenarios alike.
Built for Professional LED Lighting Projects
Paired with LW Lighting's dimmable LED strips and lighting products, the S1-B(WT) delivers a complete smart dimming solution for architectural lighting, hospitality, retail display, and custom lighting projects.
Dimmable LED Strip Controller

Compatible with LW Lighting Products

The S1-B(WT) Triac Smart Dimmer Controller is compatible with a wide range of LW Lighting's dimmable LED strips and lighting products, delivering stable brightness control through Triac dimming.
1.Dimmable COB LED Strip
Ideal for linear lighting applications requiring high uniformity and a dot-free effect, such as:
· Cabinet lighting
· Recessed ceiling lighting
· Commercial linear lighting
· Hospitality and interior decorative lighting
Dimmable COB LED Strip  12V LED strip dimmer
2. Dimmable SMD LED Strip
Compatible with a range of LW Lighting single-color SMD LED strips, including:
· 2835 LED Strip
· 3528 LED Strip
· 5050 LED Strip
Suitable for general lighting, decorative lighting, and large-area applications.
low voltage LED dimmer  3528 DC24v LED strip dimmer
3. Tunable White / CCT LED Strip
Pairs with dimmable CCT LED strips to adjust brightness while meeting the demand for a comfortable light environment across different spaces.
  CCT LED strip dimmer  dual color dimmable LED strip
4. Dimmable Neon LED Strip
Suitable for architectural outlines, interior linear decoration, and commercial display lighting, producing a soft, continuous glow.
Dimmable Neon LED Strip waterproof Dimmable Neon flex LED Strip
Note: The S1-B(WT) is designed for single-color dimmable LED strips and Triac-compatible LED products. It is not suitable for RGB, RGBW, or SPI addressable LED strips, which require independent signal control.

Tuya Smart APP Network Connection and Operation

Press and hold Match/Set key for 5s, or push twice Match/Set key fastly, Clear previous network connection, enter WiFi config mode, the blue LED indicator flash fastly. If Tuya smart APP network connection succeed, the blue LED indicator will stop flash, and in Tuya smart APP, you can find Triac dimmer device.
Tuya smart APP interface operation: Touch brightness slide to adjust brightness.
Triac Dimmer S1-B(WT) Work as WiFi-RF Converter to Match Other RF Dimming LED Controller or Driver When controlling the light with Tuya Smart/Smart Life APP, if the network connection is poor, you can control the light with Bluetooth connection within the Bluetooth control range.
Note: The light can not be directly controlled by Bluetooth without WiFi configuration. Repeat power off and on for 5 consecutive times fastly, also clear previous network connection, enter WiFi config mode, the output LED will flash 10 times

Wiring Steps

The S1-B(WT) Triac Smart Dimmer Controller supports WiFi wireless connectivity, enabling smart control of dimmable LED fixtures via mobile app, voice assistant, or wireless remote.
Connection Steps:
Step 1: Connect S1-B(WT) with Triac Dimmable LED Driver
Connect the S1-B(WT) controller to a Triac dimmable LED driver, then connect the dimmable LED fixture or LED strip. Ensure correct wiring between the power supply, dimmer, and fixture.
Step 2: Connect to WiFi Network
Connect the S1-B(WT) to your router via a 2.4GHz WiFi network and link it to the Tuya Cloud smart control platform.
Step 3: Add Device via Mobile App
Open the Tuya Smart App, search for and add the S1-B(WT) device to enable:
· On/off control
· Brightness adjustment
· Timer control
· Smart scene settings
Step 4: Optional Wireless Control
Depending on the application, you can add:
· RF remote
· Panel RF remote
· Amazon Echo / Alexa voice control
for remote operation and voice-based dimming.
S1-B(WT) WiFi Triac Dimmer Controller Connection diagram

Get a Quote

LW Lighting provides professional LED strip lighting solutions for residential, commercial, and architectural lighting projects, with OEM/ODM services available.
Whether you need a smart dimming solution for a new project or an upgrade path for an existing LED system, our team can offer the right products and tailored solutions to match your needs.
Contact LW Lighting today for a product quote and technical support.
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