9012: GTR Ultra Series 2.0 Chevrolet OEM Spec: As the industries

OEM Spec: As the industries leading OEM-Spec D4S bulb

The Pro-size has 5x more than the standard pack

can be used in conjunction with a relay harness to ensure smooth

This replacement ballast is designed to meet/exceed all OE specifications and will be a direct replacement for the factory unit

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

9012: GTR Ultra Series 2.0 Chevrolet OEM Spec: As the industriesBetter than Ever: After nearly a decade of experience developing and refining our designs, sourcing the best quality raw materials, and gathering feedback from end users on what makes the best LED bulb with the most effective beam pattern; We're proud of the new Ultra 2. This an LED bulb upgrade that is brighter. That has a better beam pattern. Lasts longer. Has more adjustability. And is easier to install. It sets an all new standard for what