RGBW Lighting
Lighting designed for every space
Products list
Professional RGBW Lighting: Colour Dynamism and White Light Quality
The RGBW technology represents the definitive evolution of LED colour-mixing systems, surpassing the limitations of traditional RGB systems by integrating a dedicated white-light chip (White). At Todo-Lux, our RGBW solutions are designed for projects that demand dynamic colour control without sacrificing high-quality functional lighting, guaranteeing smooth transitions and a surgical-precision colour palette.
Colour Mixing Architecture and Optical Performance
Unlike conventional RGB systems, which generate a synthetic white through saturation of the three primary channels (resulting in low CRI and a bluish tint), RGBW lighting offers notable technical superiority:
- Dedicated White Chip: The inclusion of a white diode (available in 2700K, 3000K or 4000K) makes it possible to achieve CRI > 80/90, which enables the same luminaire to be used for scenographic effects and for general functional lighting.
- Pastel Colour Range: The white channel allows the primary colours to be desaturated, creating pastel tones and subtle hues that cannot be replicated with three-channel systems.
- Luminous Efficacy (lm/W): By not relying on the sum of three channels to generate white light, energy consumption is optimised and the thermal load on the LED substrate is reduced, extending the system's lifespan (L70B10).
Control Protocols and Integration (DMX / DALI DT8)
The management of four channels requires robust control electronics and latency-free data communication. Our RGBW luminaires are compatible with the most demanding industry standards:
- DMX512-A / RDM: The standard for dynamic architectural lighting. RDM (Remote Device Management) support enables remote addressing and monitoring of the luminaire's status from the control console.
- DALI Device Type 8 (DT8): An optimisation of the DALI bus that allows colour and intensity of the luminaire to be controlled using a single network address, drastically simplifying cabling and programming in large-scale projects.
- High-Frequency PWM Dimming: Drivers with pulse-width modulation (PWM) at frequencies above 3kHz to ensure Flicker-Free lighting, indispensable for video recordings and to prevent visual fatigue.
Technical Comparison: RGB vs. RGBW
| Technical Parameter | Traditional RGB System | Todo-Lux RGBW System | Project Benefit |
|---|---|---|---|
| White Light Quality | Synthetic (CRI < 50) | True (CRI > 80/90) | Dual functional and decorative use |
| Colour Gamut | Saturated colours | Saturated colours + Pastels | Greater aesthetic versatility |
| Addressing | 3 Channels | 4 Channels (or 1 via DT8) | Mixing precision |
| White Consumption | Maximum (R+G+B at 100%) | Optimised (W channel only) | Energy efficiency and less heat |
High Value-Added Applications
- Architectural Façade Lighting: Creation of dynamic scenes for corporate events or festivities, while maintaining a pure white for the building's daily lighting.
- Hospitality and Retail Sector: Adaptation of the colour ambience according to the time of day or type of event, improving the end-user experience.
- Wellness Spaces and Spas: Implementation of chromotherapy cycles with smooth, organic transitions.
Frequently Asked Questions (FAQs) on RGBW Lighting
What advantage does the RDM protocol bring to an outdoor RGBW installation?
The RDM protocol allows the integrator to assign DMX addresses to floodlights once installed on the façade, with no need to physically access the luminaire via DIP switches. It also makes it possible to receive real-time temperature or channel-fault alerts, facilitating preventive maintenance.
How does voltage drop affect RGBW LED strips?
With four channels plus the common, cable cross-section management is critical. In long installations (24V strips), a voltage drop above 3% can cause the last few metres to lose intensity or vary the colour tone. We recommend the use of signal amplifiers or distributed power supplies to ensure colour uniformity.
Can RGBW systems be integrated with voice control or IoT?
Yes, our luminaires can be integrated via gateways into KNX, Zigbee or Bluetooth (Casambi) ecosystems. This enables complex scene control from mobile devices or building management systems (BMS) without the need for advanced knowledge of entertainment lighting protocols.