This 2PCS set of 3157 bulbs is a 12V P27-7W halogen bulb emitting a 3000K white light, designed as a direct, plug-and-play replacement for various exterior lights on cars, trucks, and SUVs, including turn signals, tail/brake, reverse, and running lights. It offers wide compatibility with many American and import models from the year 2000 onward, such as Jeep Grand Cherokee, Ford F-250, and Toyota Camry. Installation is straightforward, and its halogen design ensures compatibility without triggering vehicle CANBUS errors. The bulb features a multi-function design suitable for stop/tail, turn signal, parking, backup, and side marker light applications. Constructed for durability, it utilizes Anti-UV quartz glass to withstand high temperatures and is filled with Krypton gas for quicker start-up, brighter output, and a lifespan of up to 1,000 hours. Furthermore, it serves as an extensive cross-reference replacement for numerous part numbers including T25, 3047, 3057, 3157, 3457, 4057, 4114, 4157, and 5702, along with their various long-life and specialty variants.