Lighting, sometimes referred to as illumination, is the deliberate use of light to achieve a practical or aesthetic effect. Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting is the practice of placing windows or other openings and reflective surfaces so that during the day natural light provides effective internal lighting. Outdoor light fixtures can be used to improve the functionality and security of outdoor spaces. They may also be used to highlight garden features or landscape elements. Indoor lighting is usually accomplished using light fixtures, and is a key part of interior design. Lighting can also be an intrinsic component of landscape projects. Lighting can also be an integral element of sustainable design. This may include making use of natural light, reducing energy consumption and choosing energy efficient light fixtures. As well as practical purposes, lighting can also be used for decorative effect, to enhance the aesthetic appeal of a room, building or landscape. In summary, lighting is an important part of architecture, interior design and landscape architecture, and can be used for both practical and aesthetic purposes. Lighting can make a huge difference in the look and feel of a space, and can be used to create a unique atmosphere.