The DTK-DL2401 light pole surge protection device from DITEK was designed to D.O.T. standards for outdoor lighting in single phase 240VAC applications. DITEK's DL Series of Light Pole surge arresters have been engineered to meet stringent D.O.T. standards to protect outdoor lighting. These series connected surge arresters provide optimum protection for high mast lights, highway lighting, standard street lights, and parking lot light poles.