Lighting is the use of light to achieve a practical and aesthetic effect. Indoors, lighting is usually effected by light fixtures that display lamps. Some of these light fixtures have been in use since antiquity, while others are modern, like the fluorescent and halogen lamps. Outdoors, lighting is mostly effected through street lights, which light up public spaces, as well as security lights which are used to prevent crime. Lighting is especially important in the fields of video production, photography, and architecture. In these fields, lighting helps to create moods, enhance perception, and give new perspectives. In architecture, lighting is required to make sure that buildings adhere to safety regulations, and to also make them aesthetically pleasing. Lighting has also become particularly important in art. Artists may use electrical lighting structures, such as the Nehalem Light, to create an atmosphere of mystery and atmosphere. Illuminated walls and other finished works of art may also be used to emphasize key areas in a room. Lighting has been incredibly influential in human life and is here to stay. With new advances in lighting technology, it will surely continue to play a role in how we live, work, and play.