Partsam 4" x 1" Trailer Clearance / Side Marker Light 3 Diode Sealed Rectangular Amber This thin-line,sealed,rectangular LED light can be used as side marker light or indicator light. side marker and clearance light, serves as clearance, side marker or identification light Compatibility: 12V truck,trailer etc. Any Applications on the vehicles Led Marker Light Clearance Light Turn signal light You can use them on any applications: left right front rear Top Roof Truck Bed