4157NA Light Bulb


The 4157NA automotive bulb is a dual beam lamp that can be used as a replacement part for turn signals, brake lights, and tail lights. It utilizes the Halogen technology and has two filaments. The bulb is used in reflector headlights and has a usual lifespan of 1-2 years. The name 4157NA means that the bulb has a nominal power of 12 volts and 27/8 watts, and a wedge-type base. The base it uses is P27/7W. The bulb produces 405 lumens and has a color temperature of 3200K. The 4157NA bulb is interchangeable with other bulb types such as 3157, 3157K, and 4157.


The 4157NA light bulb family is interchangeable with the following bulbs