An oil lamp is a device that uses oil as fuel to produce light. It typically consists of a container for the oil, a wick that draws the oil up, and a flame that burns the wick. Oil lamps have been used for thousands of years, providing illumination before the invention of electric lights. They can be made from various materials, including glass, metal, and clay. The design of oil lamps can vary widely, from simple, functional models to ornate decorative pieces. Common types of oil used include kerosene, vegetable oil, and mineral oil. Oil lamps are still used today for ambiance, emergency lighting, and in some cultures for traditional ceremonies.