Brand Name: Sylvania Watts: 50/100/150 watt Bulb Shape Type: A21 Three Way Bulb: Yes Bulb Type: Long Neck Product Type: Incandescent Bulb Bulb Base Type: E26 (Medium) Light Color: Soft White Number in Package: 2 pk Indoor or Outdoor: Indoor California Title 20 Compliant: Yes Length: 2.56 in. Volts: 120 volt Average Rated Life: 1200 hr. Diameter: 2.63 in. Dimmable: No Packaging.. See full description for further details