Add sparkle and a decorative touch to fixtures where the bulb is visible with GE energy-efficient crystal clear bulbs These bulbs use 28% less energy than regular incandescents, helping you save money on energy costs. GE energy-efficient crystal clear bulbs have the same look, feel and nearly the same brightness as traditional incandescents, but with one big change: it now pays you back! 2 Pack 100 watt replacement uses only 72 watts A19 shape with medium base for use in table lamps and enclosed fixtures Estimated yearly energy costs $8.67 based on 3 hours per day $0.11 per kWh Lasts 0.9 years based on 3 hours per day usage Reduced Wattage Meets Federal Minimum Efficiency Standards Energy Savings. General Characteristics: Lamp type: Halogen, A-line Bulb: A19 Base: Medium Screw (E26) Primary Application: Standard Filament: CC-8 Bulb Finish: Clear reveal Rated Life (NOM): 1000 hrs Bulb Material: Sodalime glass Life in Years (NOM): 1 Additional Info: Dimmable on standard incandescent dimmer. Photometric Characteristics: Initial Lumens (NOM): 1490 Color Temperature (NOM): 3000 K Color Rendering Index (CRI) (NOM): 100 Nominal Initial Lumens per Watt (NOM): 21 Electrical Characteristics: Wattage (NOM): 72.0 Voltage (NOM): 120.0 Burn Position: Universal Estimated Energy Cost per Year (NOM): 8.67 Dimensions: Maximum Overall Length (MOL) (NOM): 4.4300 in (112.5 mm) Bulb Diameter (DIA) (NOM): 2.3750 in (60.3 mm)