Looking for a way to connect accessories to DRL, Parking or Turn circuits on your LED headlights? This adapter allows complete Plug-and-Play operation and is compatible with 2018+ F-150's that came with LED headlights from the factory. We are the ONLY company to terminate and assemble these adapters in the USA! We have the utmost attention to proper assembly and all units are tested with state-of-the-art equipment to ensure each adapter you purchase functions properly with your vehicles electrical system! **Note: Some circuits are programmed from the factory on a specific duty cycle that may result in lower voltage output than 12v in certain situations. For example, the DRL circuit may run at a lower duty cycle depending on ambient light outside. Depending on the type of accessory you are powering, this can cause issues with brightness or function. The adapter provides access to the circuit, but functionality may vary.