In addition to the clear and colour-changing LED light, the T5 ring tube provides basic illumination. The two light sources can be switched separately via external switches. To extend the LED MALANG master version we now offer slave devices. The synchronization of these individual slave versions is made via the control signal from the master unit where a remote control is included. The package also includes a ceiling canopy for direct mounting, one master or slave controller, and the remote control including batteries. This luminaire is compatible with bulbs of the energy classes: A - A