Features: This truck rocker switch control uses copper-plated silver contacts, has good electrical conductivity, and uses high-quality materials and flame-retardant casing for high safety. Equipped with output short circuit, overload polarity reverse protection. Up to 10000 times of ON/OFF operating life span. Perfect Design: Designed to connect and disconnect a DC 12V 30A electrical circuit at will, SPST:(single pole single throw), ON-OFF control; 2 pole design (On/Off), 3rd poles with LED to be connected to earth. LED on the switch will illuminate when the switch is turned on.   Widely Used: The 12v rocker switch mainly be used in car, ATV, UTV, SUV, wrangler, RV, off road vehicle, truck, boat, yacht electronics modification, etc. Available for upgrading most wiring harnesses to control LED light bar, LED work lights, fog lamps, headlights, taillights auxiliary lamps, etc.   SPST: ON-OFF Type: 2 pole design (On/Off), 3rd poles with LED Input: 12V, 30A; Material: plastic+metal LED Light color: Red, Blue, Yellow, Green   Specification Rating 12V 30A DC Position ON-OFF LED Color Blue, Red, Green, Yellow Material ABS PC Contact Material Silver Alloy + Brass Protection Level IP34 Mechanical Life 100,000 Cycles Terminals Number 3 Size 31mm(L) * 19.3mm(W) * 44(H) Mounting Hole Size 0.43''(12mm) Depth of Thread 0.275''(7mm)