STV Motorsports Laser Blue Rocker Switch BILGE/BLOWER 20A 12V ON/OFF LED Lighted for Boat Marine Applications LED Rocker Switch: illuminated by a blue LED light that looks good in any cab. Will provide a better identification when using your accessories at night and will add a custom look to your vehicle. DURABLE: Waterproof black hard surface rocker switch. SPST switch with 5 Pins. The graphic has a very durable coating that is almost impossible to wear off. ILLUMINATED: Very good lighting capability with real-night-visibility. WIDE APPLICATION: It can be used on Boats, Yachts and other vessels/marine applications . UNIVERSAL SIZE: mounting size hole is 1.41 (36mm) x .86 (22mm). This is the standard size of most switch holes in modern vehicles. Surface size is 2 (50mm) x 1 (25mm)