Incandescent Heat Bulb, R40 Bulb Shape, Medium Screw (E26) Bulb Base Type, Incandescent, Not Rated, Heat Lamp, 250W, 120V AC, Trade Number 250R40/HT/RED, Bulb Primary Application Heat Lamps, Reflector Bulb Type, Not Rated, 105 Degrees Bulb Beam Angle, Indoor/Outdoor Usage Indoor Only, Shatter- Yes, Rough Service No, Dimmable No, Bulb Finish Red, Bulb Housing Glass, 5 in Bulb Dia., 6 1/2 in Overall Length, Rated Life 5,000 hr