CityFi transforms existing streetlight infrastructure into a connected city-intelligence network — combining smart lighting control, environmental sensing, public-safety alerts, asset monitoring and real-time data in one retrofit platform.
Streetlights are already in the right places. CityFi makes them useful beyond illumination.
Lighting control, air quality, movement, power, safety and environmental data from one platform.
Integrate with council systems, GIS, utilities, and third-party tooling.
Live insight for maintenance, planning, public safety, environmental reporting and operational decisions.
The Problem
Modern cities do not lack infrastructure. They lack connected intelligence.
Streetlights are everywhere, yet most remain passive assets. Air quality is measured in too few places. Lighting faults are often discovered after complaints. Safety concerns are handled reactively. Environmental, movement and power data sit in separate systems, owned by separate suppliers, viewed by separate departments.
The result is a city that reacts after the fact.
CityFi changes the streetlight from a passive utility into an active source of awareness.
When city systems are disconnected, problems become harder to see and slower to solve. LuxMetrix uses existing streetlights to bring lighting, environment, movement, power and safety data into one shared layer of street-level visibility.
When issues are detected late, cities pay in reactive maintenance, response overhead, and wasted capital spend. LuxMetrix is built to reduce avoidable cost by making measurement and visibility deployable.
Without live street-level data, councils are forced to rely on complaints, inspections, delayed reports and assumptions. That makes maintenance slower, planning weaker and investment harder to justify.
Without live street-level data, councils are forced to rely on complaints, inspections, delayed reports and assumptions. That makes maintenance slower, planning weaker and investment harder to justify.
Every streetlight already has power, height, position and purpose. Leaving that network as lighting-only infrastructure wastes one of the city’s most valuable assets.
Real-time date. Connected systems. Proactive cities. That’s the CityFi difference.
The Solution
CityFi gives councils and infrastructure partners a practical way to turn existing lighting assets into a connected city platform.
Each LuxMetrix device can monitor environmental conditions, control lighting, detect movement, report faults, measure power, support safety alerts and deliver structured data through an API or dashboard.
Instead of deploying separate systems for every use case, cities can build from one shared hardware layer.
Deploy intelligence through the streetlight network already in place, reducing the need for new poles, cabinets or separate sensor installations.
Configure each device around the needs of the location — air quality, movement, sound, weather, impact, lighting, power or specialist sensors.
Manage lighting states, schedules, dimming, alerts and emergency behaviours remotely through a secure platform.
Turn live street-level measurements into alerts, reports, maps, dashboards and evidence for better decisions.
The Device
LuxMetrix is the CityFi streetlight device: a compact, modular unit designed to retrofit onto existing lighting infrastructure and turn each column into a connected point of control, sensing and communication.
It brings together power control, environmental monitoring, movement detection, secure device identity, communications and lighting automation in one expandable platform.
LuxMetrix is built as a modular streetlight platform, combining lighting control, sensing, communication, local processing and secure data delivery in one retrofit device.
Final configuration can be adapted to council requirements, lighting infrastructure and deployment priorities.
7-pin NEMA, 7-pin Zhaga and custom AC/DC terminal configurations.
Designed to support common streetlight connection formats across UK, European and international lighting estates.
240V AC through NEMA or AC terminals, 5–36V DC through Zhaga or DC terminals, with optional backup power.
Supports remote power control, outage reporting and continued operation through the built-in UPS option.
DALI as the primary digital lighting-control protocol, with optional 0–10V, PWM and relay-based control depending on installation.
Allows remote on/off control, brightness adjustment, schedules, adaptive dimming and future emergency lighting states.
4G, LoRaWAN, Wi-Fi, Bluetooth, Zigbee, Thread and optional Ethernet/PoE.
Allows LuxMetrix to operate through primary cellular links, LoRa networks, local configuration channels and future mesh-style communication.
Dual-core microcontroller architecture with onboard EEPROM for configuration, logs, firmware data and offline storage.
Secure IDs, write protection, and resilient local buffering when connectivity drops.
CO₂ and VOC sensing as core options, with additional optional gas modules including NO₂, CO, NH₃, H₂S, methane, smoke and other gases.
Creates a scalable street-level air-quality network without needing separate standalone monitoring stations everywhere.
Accelerometer, PIR, optional mmWave radar and optional optical sensing.
Supports impact detection, column movement monitoring, adaptive lighting, people/vehicle detection and traffic insight.
Weather-resistant casing, conformal-coated electronics, tamper detection, secure firmware validation and unique device identity.
Protects the device in the field while helping prevent unauthorised hardware, firmware or API access across public infrastructure deployments.
Platform Features
CityFi is built around a simple principle: the same physical infrastructure can support many public outcomes.
A single deployment can help reduce energy waste, improve maintenance visibility, monitor environmental conditions, support safer streets and provide the evidence councils need to make better decisions.
Control brightness, schedules and lighting behaviour remotely. LuxMetrix can support dimming, motion-aware lighting, emergency lighting states and adaptive profiles based on local conditions.
Motion-aware dimming
Up to 37% energy saving
Remote brightness
Measure local conditions including CO₂, VOCs, NO₂, temperature, humidity, pressure, UV, light and optional gas sensors. Build a street-level picture of environmental change instead of relying on a handful of fixed monitoring stations.
CO₂ + VOC sensing
Street-level data
Health insight
Detect abnormal consumption, outages, relay issues and lamp behaviour. Maintenance teams can respond based on real device status rather than waiting for public reports or scheduled inspections.
Power monitoring
Outage alerts
Fault detection
Use PIR, radar or camera-based detection to understand movement patterns, trigger lighting, support public-space planning and improve visibility when people or vehicles are present.
PIR / radar / vision
Activity detection
Adaptive lighting
Activate brighter lighting, colour states or alert behaviours in response to authorised triggers, movement events or safety concerns. LuxMetrix can support public-safety strategies without requiring separate infrastructure.
Beacon alerts
Triggered lighting
Public safety
Use connected lighting to support emergency routes, temporary warnings, event wayfinding, crowd movement and public-space communication.
Visual warnings
Emergency routes
Event wayfinding
Monitor sound levels and unusual acoustic events in nightlife areas, roads, public spaces and sensitive locations. This can support enforcement, planning and evidence-led response.
dB monitoring
Noise complaints
Sound events
Use Cases
CityFi is not limited to one department or one use case. The same platform can support lighting teams, environmental teams, safety teams, highways, events, maintenance and strategic planning.
That is the advantage of using streetlights as the foundation: the network is already city-wide.
Automatically adjust brightness based on ambient light, schedules and movement, reducing wasted energy while keeping streets lit when people or vehicles are present.
LightingActivate brighter lighting, colour states or alert behaviours in response to movement, authorised triggers or safety concerns in higher-risk areas.
LightingUse programmable RGB lighting for events, festivals, seasonal displays, temporary routes and public-space communication.
LightingGuide pedestrians through city centres, transport hubs, event routes or diversions using colour-coded lighting and programmable street-level signals.
LightingUse vibration and movement sensing to identify abnormal column movement, wind stress or structural behaviour on exposed street infrastructure.
SafetyDetect when a lighting column is hit, tilted or damaged, helping maintenance teams respond faster and assess unsafe assets with location-specific data.
SafetyUse connected streetlights to signal approaching emergency vehicles, create visible warning routes or support authorised emergency-response integrations.
SafetyMonitor high-risk waterfront and bridge areas using movement, lighting, sound and environmental data to support faster awareness and response.
SafetyIntegrate with compatible alarm systems so nearby streetlights can brighten, flash or trigger alert workflows when a property security event occurs.
SafetyMonitor CO₂, VOCs and optional pollutant gases from street level, giving councils wider environmental visibility without relying only on fixed monitoring stations.
EnvironmentTrack light, UV, IR, temperature, ground temperature, humidity, pressure and rain data to understand local weather, microclimates and changing street conditions.
EnvironmentMonitor sound levels and unusual acoustic events to support noise complaints, public-space management, incident detection and evidence-led response.
EnvironmentDetect movement and, with radar or vision modules, provide richer insight into pedestrian and vehicle activity across streets, junctions and public spaces.
MobilityUse movement and vision data to understand congestion, vehicle flow, road usage and changes caused by events, diversions or infrastructure works.
MobilityDeploy one upgradeable hardware platform across multiple city use cases, reducing the need for separate sensors, suppliers and installations.
InfrastructureStream live street-level data into dashboards, APIs and council systems to support faster, evidence-led operational decisions.
InfrastructureTrack voltage, current and power consumption to identify waste, faults and abnormal streetlight behaviour across the lighting estate.
InfrastructureDetect when a streetlight loses power and alert maintenance teams with location-specific outage information.
InfrastructureKeep the LuxMetrix device powered during short interruptions so it can report outages, continue monitoring and operate the beacon when needed.
InfrastructureRetrofit onto existing streetlight infrastructure to reduce installation time, disruption, labour cost and roadwork complexity.
InfrastructureSecurity & Compliance
CityFi is designed for public-sector deployment where security, accountability and resilience matter.
Each device is intended to operate as part of a controlled system, with secure identity, authorised access, encrypted communication, role-based permissions and auditable actions.
The goal is simple: cities should gain intelligence without losing control of their infrastructure.
AES-256 at rest, TLS 1.3 in transit — no exceptions.
Granular permissions — users only access what their role requires.
Full tamper-evident audit trail of all access and configuration changes.
OAuth 2.0 and signed API keys with rate limiting for all third-party connections.
Real-time health checks with automated alerting for anomalies.
CE / UKCARoHSBS EN 60529 (IP Rating)UMSUG / Elexon CMSBSI KitemarkEMC (Class B etc.)LoRa Association (LoRaWAN Cert)BS EN 62368-1BS 5489-1BS EN 13201ILP PLG08
Public Interest
CityFi is built for the public spaces people use every day: the roads they walk, the streets they live on, the junctions they cross and the parks, bridges and city centres they rely on.
If you would like to see CityFi considered in your area, register your interest. Local demand helps us identify where councils, partners and pilot schemes may benefit most.
We only use this to measure interest and coordinate outreach. No spam.
For Councils, Contractors & Infrastructure Partners
CityFi can support pilot deployments, council demonstrations, lighting-contractor partnerships and smart-city integrations.
We can help identify the strongest first use case, whether that is adaptive lighting, air quality, public safety, energy monitoring, power-failure detection or a wider smart-city data strategy.
Patent Pending
The LuxMetrix device and associated CityFi platform are the subject of a patent application covering aspects of the modular streetlight-mounted hardware architecture, sensor integration, control functionality and smart-city data methods.
CityFi reserves all rights in the design, technology, system architecture and associated intellectual property.