Casambi CBU-PWM4-LR Bluetooth Long Range 4-Channel PWM LED Dimmer

The Casambi CBU-PWM4-LR is a Bluetooth-controllable 4-channel PWM dimmer designed for constant-voltage LED lighting systems. Operating with a 12–24V DC power supply, the CBU-PWM4-LR provides wireless Casambi control for LED strips and other compatible constant-voltage LED modules.

With four independently controllable PWM channels, the CBU-PWM4-LR is particularly well suited to RGBW LED strips and tunable white (TW) LED strips, allowing multiple colour or white-light channels to be controlled from a single compact module. The maximum combined output current is 6A, which can be distributed across the four channels.

The CBU-PWM4-LR uses Casambi Bluetooth Long Range technology, allowing it to form part of a wireless smart lighting network. It can be controlled using the Casambi app on iOS and Android devices, as well as compatible traditional wall switches.

4-Channel PWM LED Strip Controller

The CBU-PWM4-LR is designed to sit between a 12–24V DC Class II constant-voltage power supply and the LED load. Its PWM outputs make it suitable for controlling compatible LED strips and constant-voltage LED modules.

Its four-channel design provides a flexible solution for:

• RGBW LED strip control
• RGB LED strip control
• Tunable white LED strip control
• Multi-channel LED lighting
• Wireless LED strip dimming
• Smart architectural lighting
• Commercial and residential lighting installations

The controller provides 144W maximum output at 24V DC and 72W maximum output at 12V DC, with the maximum 6A current freely divided between the four channels. Casambi specifies protection against overvoltage, overcurrent and short-circuit conditions.

Casambi Long Range Wireless Control

The Long Range capability makes the CBU-PWM4-LR particularly useful for larger or more demanding wireless lighting installations. Casambi states that Long Range communication can reach approximately 200 metres under optimal line-of-sight conditions, although actual range depends on the installation environment and surrounding materials.

For Long Range operation, the Casambi network must be configured in Long Range mode and the other relevant devices in the network must also support Long Range.

Key Features

• Casambi Bluetooth Long Range controller
• 4-channel PWM LED dimmer
• Suitable for 12–24V DC constant-voltage LED loads
• Ideal for LED strips and constant-voltage LED modules
• Suitable for RGBW and tunable white LED strips
• Maximum combined output current: 6A
• Maximum output: 144W at 24V DC
• Maximum output: 72W at 12V DC
• PWM frequency: 400Hz
• Controlled via Casambi app
• Compatible with suitable traditional wall switches
• Overvoltage, overcurrent and short-circuit protection
• IP20 – indoor use only
• Dimensions: 72.6 x 30 x 18mm
• Weight: 23g

Important: The CBU-PWM4-LR requires a 12–24V DC constant-voltage power supply. It must not be connected to a constant-current LED driver.