Uriah Products UL313003 4-1/8" Round Double-Faced Pedestal Mount Marker Light - Amber/Red Uriah Products UL313003 is a round, amber and red incandescent trailer marker light measuring 4-1/8" diameter. This double-faced light features a single-wire design and a pedestal-style stud mount for easy installation. This replacement trailer light meets all applicable SAE standards and meets or exceeds all DOT standards. Features Single, incandescent bulb helps your trailer be seen Double-faced light measures 4-1/8" in diameter Amber on one side, red on the other Single-wire design Pedestal-style stud mount USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.