The future of urban infrastructure lies in smart cities—and street lighting is one of the most critical entry points into that future. With the rapid evolution of the Internet of Things (IoT), streetlights are no longer just sources of illumination. They have become intelligent, connected nodes capable of transforming how cities manage energy, safety, and data. At the heart of this transformation lies the convergence of smart lighting controls and IoT connectivity, powered by advanced wireless communication technologies like LPWAN (Low Power Wide Area Network).

LPWAN Street Lighting Control(Low Power Wide Area Network)

In an outdoor urban environment, the communication protocol such as Zigbee, 4G or 5G, Bluetooth or Wi-Fi were not designed to connect to outdoor devices in a municipality. Their limitations in range and power consumption make them not suitable for urban infrastructure IOT connectivity. To solve this problem, a new wireless radio network communication technology emergies, LPWAN (Low Power Wide Area Network), which transmits small amounts of data over long distances using minimal power. This makes them ideal for outdoor, battery-powered devices in municipal environments.

The combination of IoT and LPWAN networks represents a revolution for Smart Cities. The two most representative LPWAN technologies currently used in Smart Cities are LoRaWAN (emerging in 2015) and NB-IoT (emerging in 2016) . Both are supported by international organization (3GPP and LoRa Alliance) and have a extensive compatibility to make up a ecosystem.

At LITWHEAT, our YW602 Individual Luminaire Control Nodes support both LoRaWAN and NB-IoT, giving cities the flexibility to choose the network that best suits their needs.

LoRaWAN Street Lighting Control (Long Range Wide Area Network)

LoRaWAN an open standard LPWAN protocol developed by LoRa Alliance, an organization representing more than 600 companies. It’s especially popular in smaller cities, municipalities, or private campuses, where operators want more control over the network.

Key Benefits:

• Long-range wireless communication with ultra-low power usage
• Operates on license-free frequency bands (868 MHz in Europe, 915 MHz in North America)
• No ongoing data costs, which keeps operational expenses low
• Enables cities to create private networks, ensuring full control over data, security, and deployment
• LoRaWAN’s open standard making it a flexible platform for broader smart city development. beyond lighting, it can also integrate environmental sensors, parking meters, and smart waste systems.

However, LoRaWAN also has some limitations that must be carefully considered.

Though LoRaWAN incorporates mechanisms to minimize interference, perating on shared frequency bands increases the risk of signal interference, particularly in dense urban environments. It is also limited in data rate and downlink capacity, which restrictsreal-time control or large-scale firmware updates. Furthermore, cities must invest in and maintain their own network infrastructure, including gateways and servers—requiring profesionnal technicians.

LoRaWAN Street Controller VS LoRa Street Controller

LoRaWAN Street Controller and LoRa Street Controller are both designed for long-range, low-power communication in smart street lighting applications. While they share similar core functions—such as remote ON/OFF control, dimming, scheduling, and real-time monitoring—they differ mainly in communication protocol and system compatibility.

The LoRaWAN Street Controller uses the standard LoRaWAN protocol, which is open and widely adopted. It can integrate seamlessly with existing LoRaWAN-based IoT platforms and third-party devices, making it ideal for projects that require interoperability. However, due to the costs of licensing, network infrastructure (such as LoRaWAN gateways), and standard compliance, LoRaWAN devices are generally more expensive.

The LoRa Street Controller, on the other hand, operates on LITWHEAT’s proprietary LoRa protocol. It offers the same communication range and performance as LoRaWAN, but at a more cost-effective price point. Since it uses a unique, non-standard protocol, it is not directly compatible with existing IoT platforms. Instead, it only works with LITWHEAT’s IOT platform and app .

NB-IoT Street Lighting Control (Narrowband Internet of Things)

NB-IoT is cellular-based LPWAN network standardized by 3GPP（3rd Generation Partnership Project）, the international organization that regulates mobile telecommunications networks worldwide (such as GSM, GPRS, 3G, 4G, 5G, among others). NB-IOT is a new cellular communication, part of the 5G ecosystem, that uses exclusive frequency bands. NB-IoT is an ideal choice for large-scale, mission-critical smart city deployments that require dependable service, secure data transmission, and centralized management through existing mobile infrastructure.

Key Benefits:

• Licensed frequency bands, no interference-free communication. Each NB-IoT device typically uses a SIM card (physical or virtual) and communicates directly with the mobile network.
• No need to invest in the network infrastructure installation and setups. just deploy and connect.
• Strong signal penetration, making it well-suited for indoor or underground devices such as smart meters, parking sensors, and streetlight controllers.

However, unlike LoRaWAN, NB-IoT requires monthly subscription fees with a telecom operator, which means recurring operational costs per device.

LTE-M 4G Networks for Centralized Street Lighting Control

While NB-IoT and LoRaWAN are ideal for connecting individual light nodes, 4G streetlight controllers stilll play a key role for centralized Lighting Control Centers (UCCs). Some cities and lighting system integrators still choose to use 4G LTE Cat 1 in street lighting controllers due to its high data capacity, widespread coverage, and real-time communication capabilities. Unlike LPWAN technologies, 4G supports larger data transmissions and higher communication frequencies, which are beneficial when the lighting system needs to transfer detailed diagnostics, firmware updates, or real-time monitoring data to the lighting control center.

It’s worth noting that some countries have announced the shutdown of 2G (GPRS) networks, which is important to consider 4G network for long-term compatibility.

The choice of communication technology for connected luminaires depends on your project’s needs—LoRaWAN offers flexibility and cost-efficiency, while NB-IoT provides reliable performance and seamless integration with mobile networks. Regardless of the option you select, the path forward is clear: connect, control, and optimize your lighting network for the smart city.

At LITWHEAT, we’re ready to help cities embrace this transformation with advanced, connected lighting solutions that scale with your needs.