LED bus bar spotlight with cylindrical head and replaceable optics. Version for 3-phase EUTRAC bus bar; connection to 230 V AC / 50 Hz mains voltage; dimmable via trailing-edge phase-cut dimmer*. The lui alto track VOLT is freely rotatable (with stop) and pivotable by up to 55° on the vertical axis. There are two optics to choose from: The zoom optic, which offers a continuous beam of light that can be set from 20° to 60°, and the lens optic, which has an internal lens combined with various inserts. The optics and optical components can be replaced without any tools, using a simple mechanism. The VOLT light engine is replaceable. Other versions: lui alto, lui alto v, lui alto doppio, lui volto (surface-mounted spotlight), lui piano, lui piano v (recessed spotlight).