Specification:</br/>Power: 12W</br/>Voltage: DC12-24V</br/>Model: Third Brake Light for F250 F350 F450 F550 1999-2015</br/>Waterproof Rate: IP67</br/>Life Time: More than 50000hours </br/></br/>LED Illumination,Long Lasting LED lights </br/> Professional Installation is Highly Recommended, No instruction included with the package.</br/> Black Wire (negative) + Red Wire (Positive), Red light works.Black Wire (negative) + White Wire (Positive), White light works.