Which firmware platforms can Corunsmart devices ship with?

Corunsmart devices can ship with Tuya or Tuya-Matter firmware for app-based retail brands, or with Tasmota, MQTT and Home Assistant-ready custom firmware on ESP32, ESP32-C2 and ESP32-C3 modules for integrators and open-ecosystem projects.

What certifications do Corunsmart products and factory hold?

The factory is BSCI and ISO 9001:2015 certified. Product lines carry CE, RoHS, FCC, UKCA, ETL and UL certifications depending on model and target market.

What is Corunsmart's production capacity?

Corunsmart produces around 400,000 pieces per month with about 160 employees in a 1,400 square metre Class 100 dust-free workshop in Bao'an, Shenzhen. Roughly 90% of output is exported.

Which markets does Corunsmart export to?

Corunsmart exports to more than 80 countries and regions, with key markets including the USA, the European Union, the United Kingdom, Russia, Mexico, Brazil and Southeast Asia.

Does Corunsmart offer OEM and ODM customization?

Yes. Corunsmart supports private-label logo, packaging, firmware and app customization, as well as ODM development of new smart switches, breakers, sockets, sensors and gateways for EU, UK, US, BR and universal standards.

OEM 3 Gang Wifi Light Switch Manufacturers & Factory

Verified OEM Catalog

Standard & Custom Connected Devices

Explore production-grade IoT modules and smart panels manufactured in our Class 100 cleanroom.

China US Wifi Smart Plug Supplier, Factory

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Custom Fingerprint Smart Door Lock Manufacturer, Supplier

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Custom Tuya Ble Smart Fingerprint Door Lock Suppliers, Factories

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Wholesale EU Wifi Smart Dual Plug Manufacturers, Factory

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ODM India WIFI Smart Plug Manufacturer, Factories

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Custom 63A Smart Circuit Breaker With Neutral Supplier, Factory

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Wholesale Self Powered Doorbell Supplier, Factories

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Wholesale Wifi Smart Door Window Sensor Manufacturer, Supplier

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Engineering Insights

3 Gang Wi-Fi Light Switch Technical Blueprint

Overcoming electrical constraints, inductive load spikes, and thermal accumulation in high-density multi-gang wall panels.

Isolated Multi-Channel Relay Control

A 3 Gang switch integrates three distinct relay coils inside a confined 86x86mm or 120x72mm enclosure. Our design incorporates optical isolation barriers between low-voltage MCU controllers and high-voltage AC traces to prevent transient relay kickback from disturbing the 2.4 GHz Wi-Fi radio.

Omron/Hongfa zero-cross switching relays
Inrush current suppression up to 80A peak
Elimination of capacitive flicker on LED drivers

ESP32, ESP32-C3 & Tuya SoC Architectures

We provide open and closed firmware ecosystem capabilities. For commercial projects requiring offline privacy, switches can be provisioned with native ESP32-C3 RISC-V chipsets pre-flashed with Tasmota or custom MQTT clients, alongside turn-key Tuya Smart Life and Matter-over-Wi-Fi configurations.

Flash memory: 4MB / 8MB SPI NOR
Local automation runtimes (works without cloud)
Over-The-Air (OTA) differential updates

Dual-Wiring Topology: Neutral & No-Neutral

Old residential infrastructure frequently lacks a dedicated neutral line inside flush-mounted switch boxes. Our proprietary hardware topology functions with both traditional Live-only (with active leakage compensation bypass) and standard Neutral + Live configurations without requiring a companion capacitor.

Ultra-low standby consumption (<0.2W)
Wide voltage support: 90V - 250V AC (50/60Hz)
Fire-retardant PC (UL94-V0) enclosure shell

Factory Ecosystem

Why Tier-1 Brands Source 3 Gang Switches from Corunsmart Shenzhen

Combining world-class SMT automation, end-to-end component clustering, and precision cleanroom assembly in Bao'an District.

Bao'an IoT Hardware Supply Chain Velocity

Situated in Shenzhen's core tech corridor, our factory is minutes away from primary component foundries, PCB fabricators, and injection mold tooling centers. Sourcing lead times for specialized passive components, Wi-Fi antenna modules, and tactile microswitches are reduced from months to mere days.

Rigid ISO 9001:2015 & Class 100 Cleanrooms

Multi-gang switch assemblies with capacitive touch glass panels are vulnerable to microscopic dust particles causing touch-drift. Our 1,400 m² Class 100 dust-free facility guarantees zero particulate contamination during OCA optical bonding and laser calibration testing.

Global Certification Pre-Compliance

We take the regulatory risk out of imports. Every 3 Gang Wi-Fi switch sub-assembly is pre-engineered for CE RED, FCC Part 15B/15C, UKCA, RoHS, ETL, and UL 60730 standards, drastically lowering testing laboratory rejection rates for private label partners.

400,000 Monthly Production Capacity (Units)

1,400 m² Class 100 Dust-Free Assembly Area

90% Export Ratio Across 80+ Global Markets

532+ Worldwide Enterprise B2B Brand Partners

Engineering Matrix

OEM 3 Gang Switch Technical Specifications

Customizable hardware variants tailored to specific international junction boxes and protocol ecosystems.

Feature Parameter	EU / UK Standard (86x86mm)	US / Standard (120x72mm)	Brazil / Italy (120x80mm)
Operating Voltage	100V - 240V AC, 50/60 Hz	110V - 125V / 240V AC, 60 Hz	110V - 220V AC, 50/60 Hz
Rated Load per Gang	Resistive: 600W/gang; LED: 200W/gang	Resistive: 800W/gang; LED: 250W/gang	Resistive: 600W/gang; LED: 200W/gang
RF Connectivity	Wi-Fi 802.11 b/g/n (2.4GHz) + BLE	Wi-Fi (2.4GHz) + Matter over Wi-Fi	Wi-Fi 802.11 b/g/n + Zigbee 3.0 Option
Wiring Requirements	Live + Neutral or Single Live Wire	Neutral Wire Required (NEC Compliant)	Live + Neutral or Single Live Wire
Switch Interfaces	Tempered Glass Touch / Micro-Push	Paddle Decora Style / Touch Screen	Mechanical Click / Capacitive Touch
Surge Protection	2.5kV Lightning Surge Withstand	Line-to-Neutral MOV & Thermal Fuse	Integrated TVS Diode & Surge Inductor

Deployment Scenarios

Macro Commercial Solutions & Local Integration

Engineered to deliver high operational reliability across residential, commercial, and multi-tenant smart environments.

Smart Residential Luxury Villas

Consolidates chandelier, perimeter downlight, and cove lighting control into a unified 3-gang faceplate. Solves wall clutter while supporting circadian lighting routines and whole-home scene activation from physical entry points.

Hospitality & Hotel Automation (GRMS)

Integrated with hotel room management systems via localized MQTT or Tuya SaaS. Programmable buttons function as "Master Off", "Reading Light", or "Night Scene", while feedback LEDs maintain gentle illumination without disturbing guests.

Commercial Office Partitioning

Enables retrofitting commercial lighting controls without re-chasing concrete conduits. Facilities teams assign individual gang relays to partitioned zones, scheduled via cloud dashboards to curtail after-hours energy waste.

Procurement Direct Answers

Frequently Asked Questions for Importers & Brands

Key information regarding MOQ, firmware licensing, tooling customization, and lead times.

Can you manufacture 3 Gang Wi-Fi switches that do not require a Neutral wire?

Yes. Corunsmart manufactures both Live+Neutral and "No-Neutral Required" (Single Live Wire) 3 Gang smart switches. Our Single-Live engineering utilizes low-leakage power harvesting circuitry that maintains Wi-Fi connectivity and relay trigger stability without producing LED flickering or ghostly glow on ultra-low-wattage lighting loads.

What is the typical Minimum Order Quantity (MOQ) for custom private branding?

For standard housing colors with laser-engraved silk-screen client logos and custom gift-box packaging, our standard MOQ begins at 500 to 1,000 units per SKU. For full injection mold housing development or specialized frame finishes (such as brushed aluminum or matte champagne gold), custom tooling MOQs generally range from 3,000 to 5,000 units.

Do your smart switches support custom open-source firmware like Tasmota or ESPHome?

Yes. We offer dedicated product lines built upon official Espressif systems (ESP32-C3 and ESP32-C2). We can ship switches with accessible UART flashing pads, pre-flashed with Tasmota, ESPHome, or custom customer-provided binary firmwares tailored for local Home Assistant and MQTT architectures without cloud reliance.

How does your factory ensure heat dissipation in a compact 3 Gang enclosure?

Operating three mechanical relays concurrently generates thermal load. We address this through high-copper-weight 2oz PCBs, dedicated ventilation convection channels within the rear casing, thermal separation between the AC switching board and the sensitive RF microcontroller, and flame-retardant UL94-V0 polycarbonates that maintain structural integrity up to 750°C glow-wire testing.

Ecosystem Components