Used to dim or switch heavily loaded zones. Allows a wall dimmer or one zone on a GRAFIK Eye 3000 Series control unit to control loads of up to 30,000W/VA. Dims or switches most popular lighting sources and load types. Available in one, two, and three-circuit dimming modules. Up to five modules may be linked to obtain the necessary load capacity. Accepts either 120V or 277V input power. Not compatible with 220-240V, 230V, or 100V input power. Control using GRAFIK Eye 3000 Series control units, Lutron wallbox controls, spacer system, or any incandescent dimmer or class 2 momentary contact raise/lower control. Allows control of 277V loads using a 120V lighting control.