The Dusk to Dawn LED Outdoor Light Bulbs are a 4-pack of A19 bulbs designed for outdoor use. These bulbs feature automatic on/off sensors, making them energy-efficient. With a daylight white color and soft white finish, they provide modern, stylish lighting. Made of plastic and weighing only 0.4 pounds, these LED bulbs are easy to install and operate at 120 volts with 40 watts of power. The bulbs are ideal for outdoor settings where ambient light needs to be detected for automatic activation.