Type S magnetic contactors and starters are for motor control applications and 8903S lighting contactors are for lighting control applications. This red 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. The pilot light is mounted in the door of the enclosure. Kit comes with a red LED lamp and a red pilot light lens. This light module kit is UL listed and CSA certified.