The 3047 automotive bulb is a single beam lamp with one filament. It is commonly used as a replacement part for parking lights and interior lights. This bulb utilizes halogen technology and has a nominal power of 12 volts and 4 watts. The bulb's name is deciphered as 30mm diameter and 47mm overall length. It uses a P14.5s base and has a life span of approximately 2 years. The bulb produces 90 lumens and has a color temperature of 2700K. The 3047 bulb is interchangeable with other bulbs such as the 3057 and 3157.