cciyu Set of 8Pcs Universal Waterproof 12V Truck RV Red Oblong Side Marker Light 6 Leds/unit Replacement fit for RV Trailer Truck Camper Dimension: about 100mm(L)x 50mm(W) x 25mm(H) (4" x 2" x 1"") Application: Replacement for Side Markers Lamps,Clearance Lamps,Indicator Lamps,Universal esp. RV Trailer Camper Boats etc..(please note the size) Waterproof 12V and work on any applications on the car left/right/front/rear/Roof side Note :If the LED does not light up, simply reverse the polarity