PC-rated lights combine the two functions of clearance and side marker lights into one. When properly mounted, a PC-rated lamp produces a 90 degree angle of light left and right of center (compared to 45 degree of traditional clearance/side marker lights). Requires mounting grommet and 2-wire plug to complete installation. Features 15,000 hour-rated long-life bulb. Use 146-18 grommet and 142-49 plug.