Recessed, surface-mounted or suspended ERCO track, with or without ceiling washlighting, provides the ideal basis for flexible lighting design in galleries and museums. Various accessories are needed according to the type of control: articles for 3-phase installation enable the dimming or switching of three separate circuits on the track. Connection components to the DALI installation enable individual control via the DALI protocol. As supplementary parts, safety plugs, picture hooks and adapters with cables for pendant luminaires can also be integrated into the system. Emergency lighting with single battery luminaires is also possible.