Arcon no. 921 bulb, 9 LEDs, Soft White, one per package. 12 volt. Base: W2.1x9.5d; miniature wedge. 0.095 amps; 1.2 watts, comparable to 18 watt incandescent. 100 lumens. 360 degree beam angle. This bulb is dimmable; not polarity sensitive. Arcon LED bulbs are energy efficient and long lasting, with excellent light quality and low heat output, using just a fraction of the wattage used by incandescent bulbs