💛Please install the positive and negative poles correctly. Please find a professional to install。Your package will include a pair of dark smoked lens sequential LED turn signal light assemblies to replace the factory equipped single incandescent bulbs with the on/off only side mirror turn signals. When you use the upgraded turn signal lights, the LED lights will flow/scroll from the center to the side. Please note that since this product has a dark smoked lens and the sequential feature, it will appear slightly dimmer than the original side mirror lamp. Installation tips: carefully remove the mirror glass to access the screws/clips inside, release them to further take off the cap/cover, and then directly replace the side marker strip assy underneath the cover.