Smibert watercolours are painted on acid-free artist paper from the world's leading manufacturers and using the highest quality of artist paints. Watercolours store easily and, when painted with true artist-quality materials, should last virtually unaltered for hundreds of years. While they like to be well lit, they can actually be damaged if continuously exposed to too much light or displayed in direct sunlight. Normal domestic or corporate lighting should be fine and even display under ‘cold' spotlight.