Partsam 4xAmber/Red LED 12V Sealed Led Marker Auto Side Lamp Trailer Chrome Bezel 6Diode Partsam (2xAmber+2xRed) side marker light trailer light clearance light, waterproof Lens,sealed Light. Universal for 12V vehicles, trucks, trailers, horse trailer, travel trailer, camper, RV etc; For heavy trucks such as Peterbilt, FREIGHTLINER, KENWORTH etc. Two-wire design includes both lead wire and ground wire for mounting to all surfaces Used as clearance Lamps, side marker Lamps, identification lights, indicator lights, Led side marker lights for trucks, led clearance light, Mini truck light. Offering customer technical service, feel free contact us for technical, installation and use question.