2" Red LED Flanged Marker/Clearance Light.MCL56RFB. Used on Turtle Top shuttle buses, RVs, motorhomes, and trailers. Light has a 2" diameter with flange the diameter is 2 15/16". Sonically sealed, waterproof. Accepts standard two-pin PL-10 plug. PC rated: functions as both clearance and side marker light when properly mounted. RED - 1 DIODE. LED Truck and Trailer Lighting. We sell more than shuttle bus lights. Please browse our store for all of your shuttle bus, church bus and RV parts needs.