LED Door Warning Light Strip, Amber Arrow Weldon's 8401 Door Warning Lamp is an ideal auxiliary door warning light for your emergency vehicle application. Mounted on your apparatus doors, the light strip contains LEDs and specialized optics to emit amber light flashing pattern that directs traffic away from the doors when open. Enhancing safety and effectiveness, Weldon engineers designed the optics specifically to throw the light away from the operators' eye and toward approaching traffic.