Easy assembly saves installation time, effort, and cost tile support rail for 2'x4' ceilings included 2'x2' perforated grille over entire front; off white or bright white finish 8" cone speaker with 10oz magnet and tweeter, and 25/70v transformer 5 power taps (4w, 2w, 1w, 1/2w, & 1/4w); selectable by rotary switch listed to ul standard 1480 for us use off white
