Milesight WS558 LN Type LoRaWAN 8-Channel Smart Light Controller (EU868)

The Milesight WS558 LN Type is an advanced LoRaWAN Smart Light Controller with 8 independent active switching outputs and integrated electrical energy monitoring, designed for intelligent lighting control, energy management and building automation in commercial and industrial facilities.

Developed for professional Smart Building applications, the WS558-LN enables the centralized or individual control of up to 8 separate lighting circuits, allowing building operators to manage lighting zones remotely, locally or automatically according to occupancy, schedules and environmental conditions.

Unlike the WS558 Switch Type, which uses passive dry-contact outputs, the WS558 LN Type features 8 active outputs and requires both Live (L) and Neutral (N) connections. It is therefore suitable for compatible electrical installations where active mains switching and electrical consumption monitoring are required.

The controller operates from a 100–240V AC, 50/60Hz power supply and supports a maximum resistive load of 10A per output or capacitive/inductive load of 5A per output, subject to a combined maximum current of 16A across all 8 outputs.

This overall current limit is especially important when controlling several lighting circuits simultaneously. The electrical load of the entire installation must be assessed rather than considering only the rating of each individual channel.

One of the WS558-LN's key advantages is its integrated electrical monitoring capability.

The controller measures voltage (VAC), current (mA), active power (W), power factor (%) and accumulated electrical energy consumption (kWh), providing valuable information about the electrical performance of the connected lighting installation.

These measurements enable facility managers to identify unnecessary lighting operation, evaluate consumption trends and improve the efficiency of lighting schedules.

The WS558-LN supports LoRaWAN EU868 communication, allowing remote control and monitoring through compatible LoRaWAN gateways, network servers and IoT management platforms.

Operating as a LoRaWAN Class C device, the controller remains available to receive downlink commands while powered, making it suitable for responsive lighting automation and remote switching.

The controller also supports Milesight D2D (Device-to-Device) communication, allowing direct interaction with compatible Milesight devices without requiring switching commands to pass through a gateway or cloud platform.

With Milesight D2D, lighting circuits can be activated or deactivated according to compatible sensor events, such as motion detection, occupancy or ambient light conditions, with very low response latency.

For example, the Milesight WS202 PIR & Light Sensor can trigger lighting when motion is detected and the configured ambient light conditions are met.

Compatible presence sensors, including supported versions of the Milesight VS370 Radar Human Presence Sensor, can also be used in suitable automation scenarios, depending on their D2D functionality and firmware.

The WS558-LN provides scheduled switching, delayed switching and multicast group control, enabling coordinated lighting operation across rooms, floors and multiple building zones.

Scheduling can be used to turn lighting circuits on or off at predefined times, while delayed switching supports automatic shutoff after a configured interval.

The controller also includes overcurrent protection and alarm functionality, allowing it to react to abnormal current conditions. These features complement but do not replace the electrical protection devices required by applicable installation standards.

For convenient local operation, the WS558-LN features 8 individual control buttons and 8 corresponding LED status indicators, allowing installers and maintenance personnel to operate and inspect each output directly.

Configuration is supported through NFC using the Milesight ToolBox application, USB Type-C and supported LoRaWAN downlink commands.

The device features a compact enclosure measuring 145 × 90 × 40 mm and supports DIN rail or wall mounting, allowing flexible installation in electrical cabinets and protected indoor technical spaces.

Its operating temperature range of −20°C to +60°C makes it suitable for a wide variety of professional indoor installations.

The Milesight WS558 LN Type is particularly suitable for office buildings, retail stores, warehouses, schools, hotels, commercial facilities, industrial premises and other Smart Building applications where both lighting automation and electrical energy visibility are required.

By combining 8 independent active switching outputs, integrated power and energy monitoring, LoRaWAN connectivity, Milesight D2D automation and scheduled control, the WS558-LN offers a comprehensive solution for intelligent lighting management and energy optimization.

Important: The WS558-LN measures electrical consumption for monitoring and management purposes but is not identified as a MID-certified billing meter. For legally regulated energy billing or certified submetering, a suitable certified energy meter should be used.

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🔑 Key Features

💡 8 Independent Lighting Channels – Individual ON/OFF control of up to eight compatible lighting circuits.

🔌 8 Active Switching Outputs – Active output design for installations with Live and Neutral wiring.

⚡ 100–240V AC Power Supply – Mains-powered operation at 50/60Hz.

🔋 Battery-Free Operation – No battery replacement or charging required.

📡 LoRaWAN EU868 Connectivity – Remote monitoring and control over compatible LoRaWAN networks.

🔄 LoRaWAN Class C – Responsive reception of remote switching commands.

📊 Integrated Electrical Monitoring – Measurement of voltage, current, active power, power factor and energy consumption.

⚡ Energy Consumption Measurement – Accumulated kWh monitoring for lighting energy management.

🎯 8 Individually Controlled Outputs – Flexible control of separate lighting zones.

🛡️ Maximum 16A Combined Load – Total current limit across all eight outputs.

🚀 Milesight D2D Communication – Direct local automation with compatible Milesight devices.

👁️ Motion and Presence-Based Automation – Control lighting according to compatible occupancy sensor events.

🌤️ Ambient Light-Based Automation – Use compatible light sensor measurements to optimize lighting operation.

⏰ Scheduled ON/OFF Control – Time-based switching for different lighting zones.

⏳ Delayed Switching – Automatic switching after configured delay periods.

🏢 Multicast Group Control – Coordinated control of multiple compatible controllers.

🔘 8 Local Control Buttons – Manual switching and testing of each channel.

💡 8 LED Status Indicators – Visual indication of individual output states.

📱 NFC Configuration – Fast commissioning through the Milesight ToolBox application.

🔧 USB Type-C Interface – Local configuration and console access.

⚙️ Remote Configuration – Supported settings adjustable through LoRaWAN downlinks.

🚨 Overcurrent Protection and Alarm – Additional protection against abnormal electrical loads.

🔩 DIN Rail or Wall Mounting – Flexible installation in electrical cabinets and technical spaces.

🌡️ Wide Operating Temperature Range – Operation from −20°C to +60°C.

🏭 Smart Building Integration – Suitable for professional lighting control and energy management systems.

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🛠 Applications

🏢 Office Buildings – Independent lighting control and consumption monitoring for offices, meeting rooms and corridors.

🏬 Retail Stores & Shopping Centres – Automated lighting schedules and energy monitoring for different commercial zones.

🏨 Hotels & Hospitality – Intelligent lighting control in lobbies, hallways and shared facilities.

🏫 Schools & Educational Facilities – Scheduled lighting operation and electricity consumption monitoring.

🏥 Healthcare Facilities – Lighting management in suitable non-critical areas.

🏭 Industrial Facilities – Control and monitoring of compatible lighting circuits in production environments.

📦 Warehouses & Logistics Centres – Zone-based lighting automation and energy analysis.

🚗 Parking Facilities – Sensor-triggered lighting and remote management of lighting zones.

⚡ Lighting Energy Monitoring – Measurement of voltage, current, power and kWh consumption.

🔧 Building Management Systems (BMS) – Integration with compatible IoT and building management platforms.

🌱 Energy Efficiency Projects – Reduction of unnecessary lighting operation through schedules and occupancy-based automation.

📡 Smart Building & Industrial IoT – Wireless lighting control and electrical monitoring across distributed facilities.

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📦 Package Includes

According to the official Milesight WS558 hardware documentation:

• 1 × Milesight WS558 LN Type LoRaWAN Smart Light Controller

• 4 × Wall Mounting Kits

• 1 × Quick Guide

• 1 × Warranty Card

📥 Product Downloads:

📑 Datasheet

📘 User Manual

Product Video