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CASAMBI radio controller CBU-PWM4 The CASAMBI radio controller CBU-PWM4 is a universal module... more

CASAMBI radio controller CBU-PWM4

The CASAMBI radio controller CBU-PWM4 is a universal module whose function can be configured in the app. This module is a CASAMBI-compatible dimmer / switch for low-voltage (12-24V) lights or LED strips that can be controlled via Bluetooth. A 12V or 24V power supply is required for operation.

The following operating modes of the module can be defined within the app:

- 4 channels can be dimmed and switched individually
- Control of LED strips with tunable white function (changing the color temperature of the white light)
- Control of lights or LED strips in which the three basic colors red, green and blue (RGB) can be controlled
- Control of lights or LED strips in which the three basic colors red, green and blue (RGB) and white can be controlled separately

The radio module can be controlled via the free CASAMBI app, which is available for iOS and Android devices in the Apple App Store and the Google Play Store or with traditional wall switches, i.e. even without a corresponding tablet or cell phone. Of course, a handheld transmitter is also available for easy control.
The radio module forms a so-called mesh network with all other radio modules that are in the same network, which exchanges information with each other. That Each CASAMBI module also acts as a repeater, which forwards the commands to other modules. As a result, long ranges are achieved inside buildings as well as in outdoor applications.

Technical specifications:
Maximum Performance:
- 72W at 12V
- 144W at 24V
Maximum output current: 6A (can be arbitrarily distributed to the individual channels
Dimming type: PWM
Frequency: 2.4 Ghz

Easiest connection:

Useful information

Bluetooth Low Energy

The Casambi solution is based on Bluetooth Low Energy, the state-of-the-art wireless technology and the only low power wireless technology in all modern smartphones, tablets and even smart watches, making it the only mainstream and future proof low power radio technology in the world.

On top of Bluetooth Low Energy, the Casambi technology provides a mesh network where all the intelligence of the system is replicated in every node and, in such a way, creates a system with no single points of failure.

Casambi solution

Such self-organizing wireless mesh network can control a large number of fixtures from any point. It also allows for firmware updates over the network, allowing any kind of changes to be made over-the-air. In this kind of fully distributed and symmetric architecture, any unit can go offline and catch up from others when they return back online.

The Casambi devices are smart on their own and only connected when needed. An Internet connection is not necessary for normal operation, it is just needed for user interface configurations to be sent or recalled from the cloud service.


Casambi allows people to control luminaires directly from their mobile device, using Bluetooth Low Energy, the cutting-edge communication technology that is built into every modern smartphone, tablet and smartwatch.

All the user needs to do is download the Casambi app to their iOS or Android device, and they're ready to control all their light fittings.

Casambi's app is designed to make it easy for anyone to commission and control lighting. The app employs intuitive gesture control: tap a luminaire to turn it on or off, swipe side-to-side to adjust brightness, up and down for colour temperature, or hold to change the colour. The unique gallery feature even lets users upload their own photos of a space, mark the positions of the luminaires, and use this to select and control them.

User Interfaces

Casambi offers a big variety of possibilities for a user to interact with the lighting depending on the user's individual requirements. The app for smartphones, tablets and smartwatches is the most elaborated user interface. Besides the app, traditional wall switches, push buttons, Casambi's own scene controllers and many other control points can be used.
Casambi collaborates with all the leading luminaire manufacturers.

For further informations please visit the website of www.casambi.com