This 250 Lumens Natural White LED Bulb tower has the 921 base. They come 6 bulbs per package. Voltage Range 10-24 Volt DC. Applications: 12 VDC auto, marine, RV, and military vehicles. The bulb is made of 27 High Power 5050 SMD LED s and the beam pattern is 360 degrees. The luminous flux is 250 lumens at 3.24 Watts. Color temp 3000-3500K Warm White.