Jeep JL Headlight Upgrades: There are relatively few headlight upgrades available for the Jeep JL, that is, unless you go with a set of traditional 7in Rounds that were developed for the JK paired with a set of the JL Adapters for the JL. Problem is, those headlights all come with H13 inputs, whereas the new JL has a proprietary multi-pin connector...! so you're going to need an adapter. This one, to be exact. Plug and Play: It's a seamless solution to keep your low and high beams working perfectly as they should from the standard control stalk inside your Jeep JL Wrangler. The outputs will plug directly into the multi-pin connector on the back of the H13 7in LED headlight, and the inputs straight from your new Wrangler. You don't need any other harnesses or modifications to make this work -- about as clean as it comes! Quality: Morimoto has been building special wire harnesses for the automotive lighting industry for well over a decade now. Everything is sealed, crimped, and loomed perfectly according to OEM standards, so you shouldn't have any concerns about reliability when running this harness. It's as solid as your Wrangler to begin with!