Partsam 5pcs 2" Red Round Sealed Clearance Marker Light 4 LED Mount Grommet/Pigtails Partsam (5 x Red) Trailer Truck LED Sealed 2" Round Clearance Side Marker Light w/Grommet/Pigtails, Red Lens, Reflex Lens 12 Volt; Flush Mount; 4LED; Kit includes grommets and pigtails for complete installation; Sonically sealed, waterproof housing and lens unit is submersible Round trailer light serves as either a side marker light or a clearance light; LEDs make great replacements for incandescent lights; 2-WIRE CONNECTION: Black is the negative and red is the positive. Dimensions: Outer Diameter: 2.5"in., Inner Diameter: 2"in., High Diameter: 0.78in.(W/ Grommet); Universally fit any Vehicles with DC 12V Such as Semi Truck & Trailer, Service Truck, Bus, Service Van, Utility Truck, Parade Float, Horse Trailer, Utility Trailer, Pick Up Truck, UTE, UTV It all started in the summer of 2013 with a simple, with bold idea: make better auto parts. In other words, not just a better auto parts - a better way of doing things. A new kind of auto company that works hand in hand with users to do something amazing, something meaningful. Now PARTSam has grown tremendously to become one of the leading platforms of e-Commerce in the aftermarket auto parts industry. Inventory Management/Warehouse &amp; Fulfillment  With our warehouse located in Milpitas, California, we take care of the inventory management for our products. This saves manufacturers space, time, and headache. Automated Multi-Channel Sales  We successfully advertise our products on multiple platforms and maintain top-rated healthy seller accounts, which keep customers drawn to our products. We are continually expanding our customer base as we add more sales channels. Professional Seller - Customers will deal directly with us in regards to issues and concerns they experience with the products. Manufacturers will not have to deal directly with the individual customers, but will experience the benefits of their business, which is the typical win-win cooperation.