20A Wi-Fi & RF Smart Switch Module

Product Description

Automate Heavy-Duty Appliances and Lights Without Changing Your Switch Style

Install this compact 20A module inside the electrical box behind your existing switch to add phone, voice, and wireless remote control to lights, ceiling fans and high-power devices like water heaters, small pumps, and large lighting circuits.

Your switch stays fully functional while adding smart automation.

Top Highlights

• Make more than just lights smart: Control suitable ceiling fans, heavy-duty lighting, and supported devices up to a 20A current limit.
• Keep your preferred light switches on the wall: Hide this compact module inside your existing electrical box without replacing your switch.
• Turn devices off from anywhere in the world: Turn on and off connected appliances or lights remotely through the Smart Life or Tuya app.
• Control your home without getting up: Use simple hands-free voice commands with Amazon Alexa or Google Assistant.
• Add convenient wireless remote control: Pair a compatible 433MHz RF remote for easy secondary control.
• Control one device from two locations: Support two-way wiring setups so you can toggle power from two separate switches.
• Let your devices follow your routine: Program automated schedules and countdown timers so connected loads turn on and off around your day.
• Skip the extra smart-home hub: Connect directly to your home's 2.4GHz Wi-Fi network without buying an external gateway.
  

Features

• 20A Maximum Load Capacity
• Hidden In-Wall Electrical Box Installation
• 2.4GHz Wi-Fi
• 433MHz RF Connectivity
• Smart Life & Tuya App Remote Control
• Amazon Alexa & Google Home Voice Commands
• Two-Way Switching Wiring Support
• Automated Scheduling & Countdown Timers
• Dedicated Terminal Blocks (L-in, L-out, N-in, N-out, S1, S2)
• Fire-Resistant PC Module Housin

Product Specifications

• Brand: Tuya
• Product Type: High-Current Smart Switch Module
• Input Voltage: AC 100–240V (50/60Hz)
• Maximum Current: 20A
• Wireless Protocol: Wi-Fi 2.4GHz (IEEE 802.11 b/g/n) + RF 433MHz
• App Support: Smart Life, Tuya Smart
• Voice Control: Amazon Alexa, Google Assistant
• Control Methods: Mobile App, Voice, Physical Wall Switch, RF Remote
• Wiring Terminals: L-in, L-out, N-in, N-out, S1, S2
• Wiring Requirements: Neutral Wire Required
• Dimensions: 1.57 Inches (H) × 1.57 Inches (W) × 0.83 Inches (Depth) / 40 × 40 × 21 mm
• Housing Material: Fire-Resistant PC
• Installation: Inside In-Wall Electrical Box Behind Existing Switch
• Use: Indoor Only
  

Important Compatibility Notes

• Neutral wire required
• Check motor startup current: Fans, pumps, and other motors can draw much more current when starting than while running
• Electrical box depth space: Ensure your electrical box has sufficient depth (at least 0.85 inches / 22 mm free space) behind your existing light switch to fit the module.
• Observe 20A current boundary: Suitable for heavy lighting and light appliances up to 20A; do not exceed 20A continuous load limits.
• 2.4GHz Wi-Fi required: 5GHz networks are not supported.
• 433MHz RF remote sold separately: Supports 433MHz RF pairing, but the physical RF remote control is not included.
• Professional installation recommended: Use a qualified electrician if you are not experienced with mains electrical wiring.

What's in the Box

• 1 × 20A Wi-Fi + RF Smart Switch Module
• 1 × User Manual