Carlo Gavazzi B4X-LS4-U Aurora 44×44 smart light switch with four programmable buttons, eight LED indicators and Dupline® bus communication for building automation systems.
£57.90
The Carlo Gavazzi B4X-LS4-U is an advanced Aurora 44x44 smart light switch designed for building automation applications using the Carlo Gavazzi smart-house concept. Featuring four individually programmable pushbuttons and four LED outputs, this compact wall-mounted control device provides flexible control of lighting, blinds and other smart-house functions.
Designed for integration into Dupline® smart-house automation systems, the B4X-LS4-U provides programmable button inputs and LED status feedback through the SH tool. Its 44 x 44 mm format allows installation into compatible Fuga, NIKO and Bticino wall sockets and frames, making it suitable for residential, commercial and industrial building automation installations.
The light switch is bus supplied, requiring no external power supply, and includes programmable white and blue LEDs for guide lighting and function status indication. With four pushbutton inputs and four LED outputs, the B4X-LS4-U provides a versatile interface between users and smart-house controllers.
The Carlo Gavazzi B4X-LS4-U provides an intuitive user interface for smart-house automation systems. Each pushbutton can be individually assigned to one or more supported controller functions, allowing customised control of lighting, blinds and other connected building services.
The programmable LED system improves usability by providing visual feedback and guidance. White LEDs can operate as guide lights, while blue LEDs can indicate function status, helping users interact with automation systems more effectively.
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | Aurora smart-house |
| Model | B4X-LS4-U |
| Product type | 44x44 smart light switch |
| Application | Building automation systems |
| Housing size | 44 x 44 mm |
| Pushbuttons | 4 individually programmable buttons |
| LED outputs | 4 white LEDs and 4 blue LEDs |
| Communication | Dupline® bus |
| Power supply | Bus supplied |
| Operating temperature | -20 to +50 °C |
| Housing material | Transparent plastic |
| Pushbutton covers | White and black covers supplied |
| Dimensions (rear part) | 44 x 44 x 25.2 mm |
| Dimensions (rear part + front) | 44 x 44 x 28.6 mm |
The Carlo Gavazzi B4X-LS4-U is a smart-house light switch used for controlling lighting, blinds and other building automation functions.
The light switch features four individually programmable pushbuttons for flexible automation control.
No, the device is Dupline® bus supplied and does not require a separate external power supply.
The switch includes four white LEDs and four blue LEDs, with programmable guide light and status indication functions.
The B4X-LS4-U is designed for installation into compatible Fuga, NIKO and Bticino 44x44 wall sockets and frames.
Carlo Gavazzi Aurora smart-house devices provide flexible, programmable interfaces for modern building automation systems, combining reliable control with intelligent visual feedback.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...