Yang Jiaodeng hinted.

People in ancient China used lamps for a long time. According to Er Ya Shi Qi, people began to light oil lamps in the Western Zhou Dynasty, and pottery was used as a container for lamp oil.

At first, lamps simply met the actual needs of life. With the improvement of scientific and technological level and aesthetic consciousness, lamps not only perform the basic functions of lighting, but also have scientific and technological attributes, and are more and more colorful in materials and shapes. The development of bronze casting technology in Han Dynasty promoted the brilliance of bronze lamps. In recent decades, various shapes of copper lamps have been unearthed in archaeological excavations, including a unique copper lamp with the shape of lying sheep.