USB lighting controller WS558 series

8-channelprogrammable

Overview
Milesight WS558 is a LoRaWAN® smart light controller for commercial and industrial buildings. It provides independent control of up to 8 lighting circuits and is available in LN (Live+Neutral with energy measurement) and Switch (dry contact) variants. WS558 supports remote control, scheduling, local operation, multicast group commands and fast local Device-to-Device (D2D) automation, while offering protection features such as per-output overcurrent detection.

Key Features

• 8-circuit independent control: single compact unit controls up to eight separate lighting circuits for zone-based management.
• Remote control via LoRaWAN®: manage and monitor lighting through LoRaWAN® gateways and IoT platforms.
• Scheduled and time-based control: configure time schedules and delay-switch tasks to reduce manual intervention and unnecessary lighting.
• Sensor-based automation: integrates with LoRaWAN® sensors (PIR, light sensors, radar presence) to trigger lighting by occupancy or brightness.
• Milesight D2D (Device-to-Device): sub-second local automation for triggers without gateway/cloud roundtrips.
• Multicast group control: apply the same command to multiple WS558 units for coordinated control across floors or repeated zones.
• Delay-off control: automatic switch-off after a preset delay to save energy.
• Overcurrent protection and alarm: per-output protection that disables a circuit when current exceeds safe limits and raises alarms.
• LN vs Switch versions: LN supports live+neutral wiring and electrical measurements (voltage, current, power, power factor, energy); Switch offers dry-contact outputs for installations without neutral.
• Local operation and status: 8 local buttons and 8 status LEDs for on-site testing, commissioning and maintenance.
• NFC configuration: quick template-based configuration via Milesight ToolBox App and NFC for rapid deployment.
• Flexible mounting: supports screw mounting and DIN-rail installation for ceilings, cabinets and walls.

Integration
Works with Milesight LoRaWAN® gateways to integrate lighting control into building management and IoT systems. Via gateway and APIs, lighting data and commands can be connected to central BMS/IT systems for centralized monitoring, scheduling and energy optimization.

Use Cases / Typical Applications

• Offices — zone scheduling and after-hours automatic shutoffs to reduce consumption.
• Schools — corridor and classroom lighting based on occupancy and timetables.
• Hospitals — reliable circuit-level control with overcurrent protection.
• Shopping malls and retail — coordinated storefront and corridor control.
• Warehouses and factories — segmented lighting for operational zones and loading areas.
• Hotels — lobby and corridor automation for guest comfort and efficiency.
• Parking garages — sensor-based and schedule control to minimize wasted lighting.

Documents & Media (available for product)
Datasheet and user guide are available for WS558. Product demo videos show 8-circuit control, LoRaWAN® remote control, scheduling, sensor automation, low-latency D2D and multicast scenarios.

Technical Specifications

• Model: WS558 (WS558-LN and WS558-Switch variants)
• Electrical (WS558-LN): Input 100–240 VAC, 50–60 Hz; 8 active outputs; resistive load max 10 A per output (total max 16 A); capacitive/inductive max 5 A per output (total 16 A). Electrical measurement: Voltage (VAC), Current (mA), Power (W), Power Factor (%), Energy (kWh).
• Electrical (WS558-Switch): Input 100–250 VAC, 50–60 Hz; 8 dry-contact outputs; resistive max 10 A per switch; capacitive/inductive max 5 A per switch.
• Wireless / Radio: LoRaWAN® and Milesight D2D; internal antenna; supported regions CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923(1/2/3/4); Tx power: 16 dBm (868 MHz) / 22 dBm (915 MHz) / 19 dBm (470 MHz); sensitivity: -137 dBm; OTAA/ABP, Class C supported.
• Local interface: 1 × USB Type-C (configuration/console); 1 × reset button; 8 × local switch buttons; 1 × power indicator; 8 × status LEDs.
• Configuration: NFC (via Milesight ToolBox App), USB Type-C, downlink commands.
• Advanced functions: multicast control, delay-switch, overcurrent protection/alarm, D2D agent for sub-second automation.
• Physical: Color/material creamy-white ABS; dimensions 145 × 90 × 40 mm; weight WS558-LN 274 g, WS558-Switch 261.3 g; mounting: wall mount and DIN-rail.
• Environmental: Operating temperature -20 °C to +60 °C; humidity ≤ 95% non-condensing.
• Certifications: CE, FCC; RoHS compliant.