The Great Value dusk to dawn LED light bulb is a smart and convenient lighting solution for your home or business. This type of light bulb has a built-in light sensor that automatically adjusts the brightness of the bulb according to the amount of natural light in the environment. When the sun sets, the bulb turns on and emits a soft and warm light. When the sun rises, the bulb turns off and saves energy. This feature can help you reduce your electricity bills, avoid unnecessary maintenance, and enhance your security and comfort. The bulbs are also LED, which stands for light-emitting diode. LED bulbs are more efficient and durable than traditional incandescent bulbs. They use up to 75% less energy and last up to 25 times longer. They also produce less heat and do not contain mercury or other harmful substances. LED bulbs are compatible with most standard fixtures and can be used for various indoor and outdoor applications.