Three-phase track rails are the standard in commercial lighting and large living rooms. They feature 4 internal conductors (3 phases + neutral), giving enormous flexibility. You can plug 10 spotlights into one track and set their knobs so that 4 turn on with the first wall switch, 3 with the next, and the rest with the third. We offer solid aluminum V-TAC rails in basic lengths that can be freely cut and joined using dedicated accessories.