Type S magnetic contactors and starters are for motor control applications and 8903S lighting contactors are for lighting control applications. This pilot light kit is for NEMA size 00, 0, 1 and 1P Type S contactors and starters in NEMA 1 enclosure. This pilot light kit will work from 6 to 600 volt. The pilot light kit comes with a red and green lens. The pilot light is mounted on the top of the Type S device. The lens in inserted into the knockout in the enclosure cover. This light module kit is UL listed and CSA certified.