Tube lights are long, cylindrical lighting fixtures commonly used in homes, offices, and commercial spaces. They provide bright, even illumination and are often more energy-efficient than traditional incandescent bulbs. Tube lights come in various lengths and can be found in different types, such as fluorescent and LED. These lights are typically mounted on ceilings or walls and can be used for general lighting or task lighting. Tube lights are popular for their longevity and low maintenance, making them a practical choice for both residential and industrial applications.