For the 2015 Jeep Wrangler, both the low-beam and high-beam headlights use an H13 bulb. The supplied fitment data does not list a fog-light bulb.
Other notable exterior lighting includes 3757A bulbs for the front turn signals and parking lights. The rear turn signals and reverse lights use 3157 bulbs, while the brake and tail lights use 3157R. The rear side markers are listed as 3157A, and the front side markers use 168NA.
The center stop light is listed as LED, so it is not shown with a replaceable bulb size in this data. License-plate lighting may use either 194 or 7441, indicating a listed fitment variation. Interior and utility lighting includes 906 for the step and courtesy lights, 912 for the dome light, and 578 for the map and trunk lights.