Partsam Bullseye Side Marker Light Indicators for Truck Trailer 12V Waterproof 4PCS (4in. x 2in.), Sealed 2x4 Double Bullseye LED Trailer Clearance Marker Lights Turn Signal Partsam (4xAmber) Super bright high power LED side marker clearance light with 12 Dioded per pieces Function as side marker light, indicator light, signal light, etc. Universal for trucks, trailers, tractors, semi-trailer, Dump Truck, special vehicle, etc Can be used on any applications, left/right/front/rear/roof side Used as Led Marker light, Auto side Lamps, clearance light, identification light etc. 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.