To find customizable LED back bumper lights for your Jeep in North American areas, you may want to explore the following options:

1. Online Retailers: Websites like Amazon, newbrownautobulbs, and other online automotive accessory retailers often carry a wide range of customizable LED lights for various vehicles, including Jeeps.
2. Specialty Automotive Stores: Visit local or online specialty stores that focus on automotive accessories and modifications. These stores may carry a variety of customizable lighting options.
3. Jeep Dealerships: Check with your local Jeep dealership, as they may offer or recommend specific aftermarket accessories for your vehicle.
4. Automotive Forums and Communities: Joining online forums and communities dedicated to Jeep enthusiasts can be a valuable resource. Members often share their experiences with different products and may provide recommendations based on personal use.
5. Customization Shops: Local automotive customization shops may be able to guide you to suitable options or even offer custom solutions tailored to your preferences.

Before making a purchase, be sure to read reviews and product specifications to ensure compatibility with your Jeep model and your specific customization preferences. Additionally, check for any local regulations regarding vehicle lighting to ensure that the modifications comply with legal requirements.

For the most current and specific information, I recommend checking the latest reviews, visiting automotive accessory retailers, and consulting with local experts or enthusiasts who may have firsthand experience with the products you’re interested in.