6418 Festoon LED Bulb can fit numerous vehicle applications, such as license plate light, interior map lights, dome light, trunk cargo light, luggage compartment light, step courtesy lights, interior door light, rear reading light, etc. Popular bulb sizes include 6411, 6413, 6418, C5W, 6486X, etc. and CAN Bus bulbs in optional colors: 6000K xenon white, pure red & ultra blue and various brightness.