Spartan Series? Metal 20 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. These controllers also have built-in circuit breakers for added protection. There are two options for activation: a built-in timer for easy consolidated installation or dual trigger cords that are designed to be plugged into any 120 V timer(s). The dual trigger cords allow you to either run all 20 lights at once or to split them and run two groups of 10 lights separately. 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.