Partsam 15" Red Hi Mount Center ID Bar 11 LED Stop Turn Tail Light Trailer Truck 4 Wires Partsam ( 1xRed ) Super bright LED Surface Mount 15" light bar, polycarbonate lens is sonic welded to the housing. Multi Function Rear Super bright 3 light Identification bar, ID bar, high mount brake light. Lights up with turn signals and brake lights. No Corrosion, Sonically sealed, waterproof, waterproof lens and housing all in a single unit. EASY TO INSTALL: White wire is the Ground. White+Blue, 4 LEDs on the left light up; White+Yellow, 4LEDs on the right work; White+ Black, 3LEDs work. Offering customer technical service, feel free contact us for technical, installation and use question. 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. Generally speaking, the light bar can be used on any wide or narrow overland vehicle requiring quality DOT rated lighting. For use on various of TRAILERS AND BOATS as: boat trailer, cargo trailer, horse trailer, car trailer, travel trailer, flat trailer, waverunner trailer etc. For use on heavy duty TRUCKS like: semi trucks, Hyundai Jeep Dodge Ford GMC heavy duty trucks and looks amazing on them. For other vehicles you can imagine as: golf cart, motorhome, RV, Camper etc. Shortly, any vehicle is suitalbe as long as the size fits.