ELIMINATES LED HEADLIGHT FLICKER – The Quadratec anti flicker harness delivers constant PWM power to your LED headlights, eliminating the flicker caused by your Wrangler JK's factory pulse width modulation system H13 TO H4 HEADLIGHT ADAPTER BUILT IN – This Wrangler anti flicker harness doubles as a plug-and-play H13 to H4 adapter, making it compatible with virtually any aftermarket LED headlight on the market FITS 2007-2018 WRANGLER JK & JK UNLIMITED – Engineered specifically for Wrangler JK and JKU models. This Wrangler JK anti flicker harness installs without cutting, splicing, or modifying your factory wiring LED ANTI FLICKER HARNESS FOR BOTH HEADLIGHTS – Sold as a pair so both headlights are covered. One complete anti flicker LED harness kit is all you need to run new LED headlights flicker-free on your JK PLUG & PLAY INSTALLATION – The Quadratec Wrangler JK headlight harness is designed for true plug-and-play fitment. No tools, no splicing, no coding. Install in minutes and drive away with flicker-free LED headlights Upgrade your Wrangler JK headlights without the headache of LED flicker. The Quadratec Anti Flicker PWM Adapter Harness is engineered specifically for 2007-2018 Wrangler JK and JK Unlimited models, delivering a true plug-and-play solution that eliminates LED headlight flicker at the source. Unlike cheap resistor kits that generate heat and wear out, the Quadratec anti flicker harness uses pulse width modulation technology to supply constant, uninterrupted power to your LED headlights — solving the exact problem your factory H13 wiring creates when paired with modern LEDs. Installation takes minutes with zero tools required. This wrangler jk anti flicker harness connects directly to your factory H13 plug with no cutting, no splicing, and no modifications to your Wrangler's wiring harness. The built-in H13 to H4 headlight adapter makes this kit compatible with virtually any aftermarket LED headlight on the market, giving you the freedom to run the LEDs you want without worrying about connector fitment. Whether you are running 7-inch round LEDs or any H4-based headlight system, this wrangler anti flicker harness has you covered. Why does my wrangler JK headlight flicker with LEDs? The JK's factory ECU uses pulse width modulation to regulate the H13 headlight circuit, which causes rapid flickering when LED bulbs are installed. The Quadratec PWM adapter harness intercepts that signal and delivers smooth, steady voltage directly to your LEDs, eliminating the flicker entirely without triggering any warning lights or error codes. Sold as a pair, you get a complete led anti flicker harness for both headlights in one purchase — no need to source parts separately. The Quadratec wrangler jk headlight harness is the purpose-built answer for JK and JKU owners who want flicker-free LED headlights installed right the first time. Fits all 2007-2018 Wrangler JK and JK Unlimited models.