Lamps and illuminating articles generally refer to the appliances that can be illuminated. In ancient times, human beings used torches to light, and then candles and oil lamps came into being. In ancient times, "candle" was a kind of torch made of flammable materials, which was used to hold the lighted torch, called candle; Piles of fine grass and branches placed on the ground for lighting are called Liao, those placed outside the door are called Da Zhu, and those inside the door are called Ting Liao. Lamps and illuminating articles generally refer to the appliances that can be illuminated. In ancient times, human beings used torches to light, and then candles and oil lamps came into being. In ancient times, "candle" was a kind of torch made of flammable materials, which was used to hold the lighted torch, called candle; Piles of fine grass and branches placed on the ground for lighting are called Liao, those placed outside the door are called Da Zhu, and those inside the door are called Ting Liao.