Incandescent Bulb, Bulb Base Type Double Contact Bayonet (BA15d), Bulb Shape T3-1/4, Light Technology Incandescent, Voltage 24V AC, Watts 5 W, Rated Life 2,500 hr, Dimmable No, Light Color White, Standards CE Certified, cULus Listed, Bulb Minimum Starting Temperature -22 Degrees F, Package Quantity 25