Patrick Durand stated that open standards-based lighting control can address the concerns of lighting OEMs regarding system complexity, scalability, interoperability of luminaires and control components, and flexibility in indoor commercial lighting applications. When lighting OEMs bid for a project, they are often required to include a compatible lighting control system—typically from a third-party supplier—in their proposal, with specific control requirements assigned to them. To date, many lighting OEMs have responded passively without developing a proactive strategy for integrating lighting control.
Should we wait for a set of global lighting control standards? The main reason for this passive approach is confusion: uncertainty about which technology to use and which supplier to invest in, especially for indoor commercial and office environments. Most OEMs lack the time, resources, or expertise to evaluate all available lighting control technologies thoroughly.
In residential lighting control (e.g., smart bulbs), ZigBee Light Link has emerged as the dominant standard, supported by multiple OEMs. However, in commercial and office settings, the landscape remains fragmented and evolving. Many OEMs choose to wait for a dominant standard to avoid making early decisions on technology, which can be risky.
There are three key reasons why a global standard hasn't yet emerged. First, lighting control technologies and dimming signals vary by region. For example, 0-10V is common in North America, while DALI and PWM are more prevalent in Europe and Japan. Additionally, building automation systems like BACnet are widely used, but KNX dominates in Europe, making it difficult for OEMs to rely on a single solution.
Second, the complexity of lighting control systems varies significantly. Some systems are simple, using only sensors to detect occupancy, while others are highly centralized, managing entire buildings or cities. The technologies used for these different systems often differ, adding another layer of challenge for OEMs.
Third, lighting control is typically not specified by OEMs themselves; it’s the responsibility of architects, building owners, or managers. This creates a gap in decision-making that OEMs must navigate.
Given these challenges, what should lighting OEMs do when choosing a control technology to develop an active strategy? Many still prefer to wait, hoping that standards will clarify the market. However, the reality is that there are numerous options, and OEMs can evaluate solutions based on five key criteria: flexibility, interoperability, simplicity, scalability, and proven technology.
Flexibility and interoperability are crucial. Lighting control technologies fall into two categories: proprietary and open. Proprietary systems are limited to a single supplier, while open standards allow multiple vendors to interoperate. Open technologies like EnOcean and ZigBee offer greater flexibility, enabling OEMs to mix and match products from different suppliers.
EnOcean is an ISO/IEC-certified wireless standard optimized for ultra-low power and energy harvesting. It allows wireless switches and sensors to operate without batteries, using mechanical energy from user interactions. With over 350 members and 1,300 interoperable products, EnOcean provides strong support for OEMs.
ZigBee, based on IEEE 802.15.4, is more complex and often involves proprietary protocols. While it offers network capabilities, most ZigBee-based products are not fully interoperable across vendors, limiting OEM choices unless they use a specialized gateway.
Architects and building managers may specify different control requirements, such as BACnet integration, occupancy sensors, or smartphone control. An open system like EnOcean allows OEMs to meet these needs using existing interoperable components, avoiding the need for multiple technologies.
Simplicity and scalability are also important. Some customers prefer straightforward, standalone systems without gateways, while others want scalable solutions for larger buildings. EnOcean supports both, allowing seamless transitions from simple to complex systems without replacing existing infrastructure.
Proven technology and support are essential. Building owners don’t want to test unproven solutions. EnOcean has been deployed in over 350,000 buildings globally, offering reliability and long-term support. While ZigBee and 802.15.4 are also mature, EnOcean’s global presence gives OEMs an advantage in international markets.
By focusing on open standards, OEMs can build flexible, scalable, and interoperable lighting control solutions that meet diverse customer needs. This approach not only improves competitiveness but also ensures long-term success in a rapidly evolving industry.
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