Lighting, most simply, is the use of light to create a desired environment. Lighting fixtures provide a variety of lighting options, ranging from broad illumination to narrow, highly focused beams of light. Lighting has multiple purposes: To create general illumination, to highlight focal points, to provide task lighting, and to accent and decorate. General illumination is provided by overhead recessed lighting and wall-washing fixtures. Focal points can be illuminated with track lighting. Task lighting, such as desk lamps and reading lights, is used to create local, bright light for focused activities. Accent lighting and decorative lighting improve a room's aesthetics by emphasizing art and features, with wall sconces, under-cabinet lighting, and decorative fixtures. Light bulbs and lighting fixtures come in a wide variety of shapes, sizes, colors, and technologies. Commonly used lighting technologies include incandescent, fluorescent, LED, and HID. In addition to choosing the right type of bulb, homeowners should also consider choosing fixtures that provide appropriate color temperature and brightness. Lighting is an important consideration when designing and decorating a space. Careful consideration of needs in terms of illumination, accenting, and decorating can ensure that all the goals of lighting in a room are met, while improving the overall aesthetics of the room.