Feature●20 Amp 12 Volt ON-OFF Rocker Switch●LED back-lite (blue)●Black hard surface rocker. Surface size is 2" (50mm) x 1"(25mm).●Waterproof rating of IP66.●All symbols are laser engraved, will not wear off.Description Standard size mounting hole 1.41"(36mm) x .86"(22mm). This is the standard switch size for modern vehicles.