In the ancient world lamps were usually made of pottery shaped like a shell with a rim across the top and a spout at one end to hold the wick. The lamps of Christians were decorated with Christian symbols. Olive oil was the most common fuel, and although lamps could hold enough oil to last through the night, housewives had to get up during the night and trim the wick. In Jesus’ day, the most common lamp was a wheel shape,
