The Galaxy 3.1 lamp system introduces additional features and conveniences that allow for a much more flexible use of lighting. The 3.1 model is equipped with a built-in on/off button, allowing each lamp to be independently turned on and off individually. This allows you to tailor lighting to your specific needs and save energy when lamps are not in use. In this configuration, the RDL0111-1 acts as the first element in a series of lamps. The RDL0112-2, on the other hand, is used to extend the lamp sequence and is attached via the optional RDL0010-P2.5-2 cable. This expanded configuration of the Galaxy system offers users even more control over lighting. Again, each lamp offers 4,500 lm of luminous flux.