12-Way MDF Contactor Board + 2 Sockets, with Timer12 Way MDF Contactor Board with 2 Always On Sockets & Timer A mid range lighting contactor board for growers running 8 12 lights plus 2 extraction fans. Built in overload protection and a reliable 24 hour mechanical timer substantially reduce the risk of power surges or overlighting damaging crops. Sits between the 8 way (small setups) and 24 way (commercial) boards. Why growers choose the 12 Way Contactor Board: Runs up to 12 lights and 2 always on