These energy-efficient soft white bulbs have the same look, feel and nearly the same brightness as traditional incandescents. 43-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 620 lumens. Bulbs have been rated at 2,700 Kelvin and offer a CRI of 100.