Mass production, „flow production“ or „continuous production“ is the production of large amounts of standardized products, including and especially on assembly lines.
Lighting or illumination is the deliberate use of light to achieve a practical or aesthetic effect.
A cottage is, typically, a small house. It may carry the connotation of being an old or old-fashioned building. In modern usage, a cottage is usually a modest, often cosy dwelling, typically in a rural or semi-rural location.