Type S magnetic contactors and starters are for motor control applications and 8903S lighting contactors are for lighting control applications. This green LED pilot light kit is for Type S contactors and starters in a NEMA 1, 3R and 12 enclosure. This pilot light kit will work at 120 VAC 60 Hz. The pilot light is mounted in the door of the enclosure. Kit comes with a green LED lamp and a green pilot light lens. This light module kit is UL listed and CSA certified.