Partsam 2x Trailer Truck Surface Mount LED Oval 2.5" Amber Side Marker Lamp Bulb 2 Diodes, Boat Marine LED Courtesy Lights, 2.5 Inch Trailer led clearance and side marker lights Partsam ( 2 x Amber ) Side marker, clearance light, led marker light. Commonly used on trailers, trucks, Heavy Duty Trucks, motorhome, RV, golf cart etc. Commercial Vehicles such as Peterbilt / Freightliner / Kenworth. EASY TO INSTALL- 2 Wire Connection: White is Negative and Black is Positive. LED Advantage: Low consumption, high energy, long life. Light Size: Length x Width x Height : 65mm x 26mm x 18mm (2.56'' x 1.02'' x 0.71''); Hole distance: 46mm (1.81'') 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.