Grand General's premium quality Pearl LED (light emitting diodes) lights are a great choice to dress up your ride with bright LEDs. Each individual diode has a round pearl-shaped reflector giving the light a clean, custom look and superior light distribution. LEDs are brighter and have lower ampere draw making it possible to add more lighting without upgrading your charging system. This 4" Pearl 24-LED load light with #1156 socket base fits the OE stock load light housing located behind the cab/sleeper. This LED is DOT (Department of Transportation) compliant for street legal lighting and is an excellent choice to upgrade your ride.