The Half-Light® controller can be used in conjunction with step dimming ballasts, as well as conventional magnetic and electronic ballasts. By switching between the step dimming input and the primary input, 50% light can be achieved when switch is on and full light when switch is cycled off then on again.
Switch Sequence
Switch On
50% Light
Switch Off, then On
Full Light
*For 120 Vac systems, black wire is used and red wire is not used. For 208-277 Vac systems, red wire is used and black wire is not used.