A lightbulb is an essential tool for illuminating a space. However, there are various names for it. For starters, they're commonly referred to as bulbs, lamps, or tubes. Additionally, within the realm of lamps, there are various types, namely incandescent, fluorescent, and LED. There are also different shapes such as the traditional pear-shaped bulb or the tube-shaped lamp used in overhead lighting fixtures. In manufacturing settings, they're often called globe light bulbs or A-lamps, and they're various sizes depending on the wattage. A lightbulb's function remains the same, and regardless of the name used, it's a fundamental source of illumination in homes and offices globally.