Spartan Series? Metal 4 Light 240 V Controllers bring you quality and reliability for an economical cost. The heavy-duty enclosure will stand up to the rigors of a growing environment while controlling your lights flawlessly. The controllers utilize a heavy-duty definite purpose contactor that is rated for ballast usage. There are two options for activation: a built-in timer for easy consolidated installation or a trigger cord that is designed to be plugged into any 120 V timer. These products also feature universal outlets that allow you to use a 120 V or 240 V cord to run your ballasts at 240 V.