A bit more information please. There are dozens if not hundreds of different LED lights for sale for the Wrangler and installation instructions are all over the place.
Some have anti-flicker built in, some have a harness, some don't come with any anti-flicker. If you paid less than $300 they are all basically then same things with just enough variation to make diagnosing the problem require more info (I certainly can't justify $700 for perfection, when my $100 set does good enough)
A link to the exact pair, and/ or a photo of the install instructions may be helpful.