A chandelier is a decorative light fixture mounted on ceilings or walls. Chandeliers are often ornate, and normally use incandescent light bulbs, though some modern designs also use fluorescent lamps and recently LEDs. Classic chandeliers have arrays of hanging crystal prisms to illuminate a room with refracted light, while contemporary chandeliers assumes a more minimalist design that does not contain prisms and illuminates a room with direct light from the lamps, sometimes also equipped with translucent glass covering each lamp. Modern chandeliers has a more modernized design that uses LEDs, and combines the elements of both classic and contemporary designs; some also equipped with refractive crystal prisms or small mirrors Chandeliers are distinct from pendant lights, as it usually consist of multiple lamps and hangs in a branched frame, whereas pendant lights hangs from a single cord and only contain one or two lamps without any decorative elements. Due to their size, they are often installed in hallways, living rooms, staircases, lounges, and dining rooms. However, miniature chandeliers also exist, allowing them to be installed in smaller spaces such as bedrooms or small living spaces Chandeliers evolved from candelabra and were invented during the medieval era. It originally used candles as its primary source of light and remained in use for up until the 18th century, where the invention of gas light and electric light takes place.