A light bulb or lamp, often known as an electric bulb, is a device that creates light by transmitting an electric current through a filament or gas. The incandescent bulb is the most popular form of bulb, with a filament composed of tungsten wire that is heated to a high temperature by the current, causing it to glow and generate light. Electric bulbs have transformed the way we light our homes and workplaces, delivering a safe and dependable source of light at the flick of a switch. They may be used for everything from lighting up a room to providing illumination for outside regions. The bulb is commonly composed of glass or plastic and filled with a gas, such as argon or nitrogen, to keep the filament from burning up owing to the high heat.