HYDROFARM MLC-4X 4-Light HID Controller
Hydrofarm MLC-4X Master Lighting Controller is the best device for controlling up to four HID lights from one time-clock or controller. You run 30 amp, 120 240 volt power into the MLC 4, and all the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the CAP HLC series of garden and lighting protection devices.