10–30 VOLT MODEL 18 L.E.D REAR END OUTLINE MARKER LAMP (RED). 86 Model 18 lamps are approved to the side marker ADR 74/00 that allows a side marker to be all amber and outward facing. This has allowed us to develop and offer lamps that are ultra slim and incorporate in-built, ADR 47/00 approved retro reflectors. This saves the additional cost and space required to fit a reflector and makes the