The Carquest 1157 Bulb is a widely used dual-filament automotive bulb designed for tail lights, brake lights, and turn signal applications. Its dual-filament design allows it to provide both low-intensity running or parking light and high-intensity brake or turn signal functions within a single bulb, ensuring optimal vehicle visibility and clear signaling on the road. Built with durable tungsten filaments, the 1157 bulb is engineered to withstand frequent on-off cycles, road vibration, and shock, delivering long-lasting, reliable performance. Designed for standard 12V automotive electrical systems, the Carquest 1157 is a trusted choice for maintaining bright and dependable exterior vehicle lighting.