The MLC-4X Master Lighting Controller is the best device for controlling up to four HID lights from one time-clock or controller. You run 30A 120/240V power into the MLC-4X, and all of the outlets are controlled by one 120V trigger cable. You can plug the trigger cable into a standard 24-hour timer, environmental controller or one of C.A.P.’s HLC series of garden and lighting protection devices. The MLC-4X both have four 120/240V style outlets which allow for running your ballasts at 120/240V without having to change out your ballast power cords. The MLC-4X is rated for 30 amps @ 120/240 volts.