Smart Control at Low Voltage
The SONOFF 1-Channel WiFi W/L 5 V Relay is your entry point into real-smart automation for low-voltage systems. Designed for DC 5 V input and built with premium features like Nano-size design, dry-contact output and full compatibility with the eWeLink app, this module lets you control devices remotely—from anywhere in South Africa. Whether you're automating lighting, pumps, IoT gadgets or a custom setup, this relay gives you reliable performance and flexibility with minimal footprint.
Why it’s a top choice
Low-voltage smart control carries big advantages: more safety, easier integration and lower cost. With the SONOFF 5 V relay, you’re tapping into that advantage with a module that supports inching/self-lock modes, voice-assistant compatibility, and network-based control. It’s ideal for DIY automation, tech-savvy homes, hobby projects and commercial setups alike.
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5 V DC input: Perfect for USB-powered systems, 12 V/5 V DC setups, or low-voltage automation environments.
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Dry-contact output: Lets you switch external loads safely and cleanly—ideal for LEDs, relays, external control circuits.
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Supports inching & self-lock modes: Add advanced control logic (momentary pulses or latched states) via the eWeLink app.
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Remote + voice control: Use eWeLink on your phone, plus compatibility with Alexa, Google Assistant & IFTTT for full integration.
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Compact size (34.5 × 25 × 19 mm): Easy to fit behind switches, inside enclosures or DIY projects.
Specifications & compatibility
- Model: SONOFF RE5V1C – 1-Channel WiFi Relay Module
- Power supply: 5 V DC input
- Output: Dry-contact (no built-in high-voltage switching)
- Max current: 10 A (when used appropriately)
- Operating temperature: 0 °C to 40 °C (32 °F to 104 °F)
- Wireless: WiFi 2.4 GHz, app control via eWeLink
How you can use it
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Smart lighting upgrades: Turn on/off LED strips or accent lights via your phone or voice—even when off-site.
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Automation for pumps or fans: Use low-voltage control to integrate with solar or DC systems in workshops, boats or remote cabins.
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Control access or external gear: Use the dry-contact output to trigger gate motors, locks or other automation circuits safely.
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DIY IoT or hobby projects: Add it to micro-controller or Raspberry Pi setups to bring connectivity and control to your builds.
Installation & maintenance tips
Before installing, ensure your power source is a stable 5 V DC supply and observe polarity. Mount the module in a dry enclosure with good ventilation and away from surges or high-voltage interference. Connect your load via dry-contact terminals according to the manufacturer’s diagram. After powering, link the device to your WiFi (2.4 GHz) via the eWeLink app and set your preferred control modes (inching or self-lock). Periodically check wiring and ensure firmware/app updates are applied for improved stability.
Important notes and safety information
This module is designed for low-voltage automation (5 V DC) and uses a dry-contact output—meaning the load is not powered by the module itself but is switched via its contacts. Always comply with South African electrical and safety regulations, and if you’re switching mains voltage gear, ensure proper isolation and safety measures. Disconnect power before installation or servicing.
Take your automation to the next level
The SONOFF 1-Channel WiFi W/L 5 V Relay brings smart control, flexibility and professional-grade features to any automation setup — without the complexity. Whether you're upgrading your home, workshop, or hobby project, this module makes connected control simple, smart and scalable. Add it to your NeonSales catalogue today and give your customers the key to smarter living.
