GRAND GENERAL is a leading manufacturer and distributor of high quality truck accessories since 1984 featuring an extensive selection of DOT approved lighting products, chrome accessories and more. LEDs are brighter and have lower amperage draw making it possible to add more lighting without upgrading your charging system. Upgrade your vehicle's lighting with GRAND GENERAL's 3-1/2 Inch Rect. Prime Red/Red 4 Led Marker Sealed Light. GRAND GENERAL's 3-1/2 Inch Rect. Prime Red/Red 4 Led Marker Sealed Lights DOT (Department of Transportation) compliant for street legal lighting and is a premium quality choice This LED light is commonly used in medium and heavy-duty trucks, towing & boat trailers, RVs, buses, ATVs, utility vehicles and many more.