Lighting 4-Head Tracker Light Effects System The Lighting 4-Head Tracker System is perfect for any small-to-medium gig or club. The club light system includes a master unit, 3 slave units, 3 - 8' link cables, and can be expanded to up to 16 units. 16 preset sound-activated patterns and 8 colored lenses per unit create 16 multicolored beams per light unit. Lighting 4-Head Tracker Light Effects System Features: 4-unit system 16 preset sound activated patterns 1 master and 3 slaves 8 multicolored beams per unit Lamps: 4 x 64514 (120v 300watt)