Partsam 4pcs LED Light Red/Green Universal Clearance Side Marker Trailer Clear Lens 12V, Mini Sealed Led Marine Boat Trailer Fender Side Lights 2 Diodes Idenfitication Lights Surface Mount 4pcs (red+green) Clear Lens 12v DC Side Marker trailer Light Mini-Sealed LED Surface mount design These are universal.Generally people use them as clearance, side marker or identification light. We also get feedbacks form our customers and they use them for trailer lights 2 for brake lights and two for tail light on each side. Also some put them on motorhome as position lights ... Easy to install with Free end wire ( Black is Positive: White is Negative/ground ); the wires come out of the back of the light; Two-wire design includes both lead wire and ground wire for mounting to all surfaces; any application on 12V vehicles; Brightness: 80 lumen each light with 2 pcs High Quality LED Diodes; Fender Marker Light ID light; 64mm x 26mm x 18mm (2.54" x 1.01" x 0.7");the center to center dimension between the screw holes: 46mm (1.8") 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.