8In. Cone Ceiling Speaker pre-assembled onto a 13In. steel bright white grille- Volume control with knob- 4 Watt capacity- 6 different power taps available 4, 2, 1, 1/2, 1/4, 1/8W- T725 4-watt transformer- Pre-assembled for faster installation- Works with both 70V and 25V amplifier outputs