Incandescent Bulb, Bulb Base Type Double Contact Bayonet (BA15d), Bulb Housing Glass, Bulb Shape S6, Bulb Finish Clear, Color Rendering Index Not Applicable, Color Temperature 2800K, Lumens 66 lm, Light Technology Incandescent, Shatter-Resistant No, Trade Number 10S6DC/230V, Voltage 230V AC, Watts 10 W, Bulb Beam Angle Not Applicable, Rated Life 1,500 hr, Dimmable Yes, For Enclosed Fixtures No, Three-Way No, Light Color White, Indoor/Outdoor Usage Indoor Only, Overall Length 1 13/16 in These S-shaped miniature light bulbs have a double-contact (DC) bayonet base, sometimes known as a BA15d base. There are two contacts on the bottom of the base. The base has lugs on either side that lock the bulb in place when the bulb is pushed into a compatible socket and twisted.S-shaped miniature light b.