Converts single-function LED, halogen or incandescent bulbs into high-low dual-function bulbs; run-stop, run-turn or high-low. Works with turn signals, marker lights, neon accent lighting or driving lights. Capable or running up to two 50W driving lights without any heat issues (two inputs, two outputs). Comes with easy-to-follow instructions and features plug-in connectors for hassle-free installation on select models. PART #s 2050-0173 and 2050-0174 return run, brake and turn signal light function after the stock fender has been removed. Made in the U.S.A.