Glass fuse built into circuit for overload protection Copper alloy conductors for low-resistance performance Direct snap-fit mounting with 1/2" stem for panel installation This 12V universal headlight switch features a fused three-position Off-On-On function, ideal for controlling dual-stage lighting or other 12V circuits. Built with durable materials and five screw-type terminals, it ensures secure connections and reliable electrical performance in automotive applications. Compatible with or replaces the following part numbers: STANDARD MOTOR PRODUCTS – DS135 AIRTEX – 1S4727 – Direct Cross Interchange – 3 WELLS – SW8X – Direct Cross Interchange – 2 Forecast – HLS12 – Direct Cross Interchange – 2 ECHLIN – HL6050 – Indirect Cross Interchange – 3 ACDelco – U1906A – Indirect Cross Interchange – 2 GM – 88924587 – Indirect Cross Interchange – 2 ECHLIN – HL6049 – Indirect Cross Interchange – 2 BWD – S2109 – Indirect Cross Interchange – 2 ACDelco – U1502 – Indirect Cross Interchange – 1 ACDelco – U1500 – Indirect Cross Interchange – 1 ACDelco – D1503 – Indirect Cross Interchange – 1 BORG WARNER – S141 – Indirect Cross Interchange – 1 GM – 1995021 – Indirect Cross Interchange – 1 GM – 1994017 – Indirect Cross Interchange – 1 GM – 1972302 – Indirect Cross Interchange – 1 GM – 12302012 – Indirect Cross Interchange – 1 GP SORENSEN – LS96 – Indirect Cross Interchange – 1 MOTORCRAFT – SW305 – Indirect Cross Interchange – 1