This energy-efficient soft white bulb features the same look, feel and nearly the same brightness as traditional incandescents. 53-watt bulb uses 28 percent less energy than regular incandescents, helping you save money on energy costs. 120-volt bulbs are perfect for use in common household fixtures like table lamps, floor lamps, enclosed ceiling fixtures and bare lamp sockets. Bulbs feature a medium screw base and are designed to last 1,000 hours using 890 lumens. Floodlights have been rated at 2,750 Kelvin and offer a CRI of 100.