The GE Classic LED Daylight 8 pack 40w Dimmable light bulbs are designed to provide bright and energy-efficient lighting for your home. With a cool white light appearance of 5000K, these bulbs emit 450 lumens of brightness while using only 5 watts of energy. The estimated energy cost for these bulbs is just $0.60 per year, and they have an estimated lifespan of 13.7 years. These medium base bulbs are dimmable and come in an opaque finish, making them a convenient and cost-effective lighting solution for your space.