2019 SL-Laser projector, model ProDirector 6. Single head works with computer (not included) to use engineering files to project to-scale laser image of a desired truss, floor panel or wall panel on the table’s work surface. Position the image anywhere on the table for efficient table usage. Set jigs accurately using the projected truss outline. Quickly identify components and place them in position. Locate connector plates precisely on component joints for maximum strength. Includes one SL universal mounting plate. 120 volt, 1 phase, 15 Amp electrical required.