CBU-PWM4 is a Bluetooth controllable, Casambi enabled four channel PWM dimmer for constant voltage LED loads, such as LED strips and constant voltage LED modules. It is connected between a 12-24 VDC power supply and the constant voltage LED load.

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Product description

CBU-PWM4 can control up to four channels making it an ideal partner for RGBW and tunable white (TW) applications. The maximum combined output current is 6 A which can be freely divided between 1 -4 channels. CBU-PWM4 is protected against overvoltage, overcurrent and short circuit situations.

CBU-PWM4 can be controlled with Casambi app which can be downloaded free of charge from Apple App Store and Google Play Store.

Different Casambi enabled products can be used from a simple one luminaire direct control to a complete and full-featured light control system where up to 127 units (Classic) or 250 units (Evolution) form automatically an intelligent mesh network.


Voltage range
12-24 VDC

Max. input current:
6 A
4 A (US and Canada)

No-load standby power
< 0,3 W


Output voltage
Same as input voltage

Max. output power
144 W @ 24 VDC
72 W @ 12 VDC
96 W @ 24 VDC (US and Canada)
48 W @ 12 VDC (US and Canada)

Max. output current
6 A (can be freely divided between the channels)
4 A (US and Canada)

Min. load requirement
0 W

Dimming method
Pulse Width Modulation (PWM)

72,6 x 30,0 x 18,0 mm