4 Pin SPST Design. Rated at DC 12V/20Amp and DC 24V/10Amp, the 4 pins LED rocker switch is SPST (single pole single throw). Available for upgrading most wiring harnesses to control LED light bar, LED work lights, fog lamps, headlights, taillights & auxiliary lamps, etc..Wide Application. Marine-grade construction IP65 waterproof light bar toggle switch made with high quality plastic shell and tin-plated terminals can be used in both automotive and marine areas. 4 rocker switches in a pack, perfect replacement for your defective on-off switch. Widely used at most car, ATV, UTV, SUV, RV, off road vehicle, truck, boat, yacht, etc..Toggle Switch SPST Dimension. These 4 prong marine LED switches required a mounting hole size of 1.46 inches (37.2 mm) x 0.83 inches (21.2 mm), are standard size and well suited for most cars and boats..Two Wiring Methods. The SPST switch with LED has a personalized lighting design, we can choose two different lighting methods. The indicator light of the switch always ON, helps you easily recognize its status, and helps you easily find the position of the switch at dark environments; The indicator light of the switch ON when the device is on, there is no current flow /draw when the switch is off, therefore it does not drain the battery..Night Glow DIY Sticker. Comes with 1 pcs of waterproof night glow sticker labels contains various symbols and words for you to DIY your specific needs and help you find the switch in the dark easily.