Partsam 10pcs 3.9" Waterproof Red 3LED Side Marker Light Lamp for Trailer Truck Boat DC12V, Thinline Faceted LED Trailer Truck Clearance or Side Marker Lights w Mini Reflectors 3.9" 3-LED Side Marker Light Clearance Light w reflector; including stainless screws for installation in package. stainless screws are also included in package; Miro-Reflex faceted reflector provides increased light output with a contemporary appearance Surface Mount Design 2pcs of electronic lines with plug; red wire is the lead and black the ground; draw exactly 40 milliamps of current at full brightness; Universal 12V Sealed Light reflex lens; Replace rear clearance lights on RV or replace boat trailer clearance lights; Universal for 12V vehicles Reflective led marker lights 3LED; Bright lights to make it easy to see in the dark when backing a trailer, also makes your trailer more visible to others in case they abruptly change lanes; approx. 4" x 1"; center distance of mounting holes: 55mm; dimensions without base: 98 x 31 x 26(mm); dimensions with base: 103 x 34 x 30(mm); Mini-reflex led side fender marker trailer light 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.