If the light source of a room is from windows or a skylight, your decorating design will need to be different from a dark hallway or windowless room. Lighting is the lifeblood of any art. Why? Color.
Different levels and types of light can influence the color of a displayed picture. What does the room look like during the daytime hours? Are you positioning your artwork to take advantage of the light sources or colors that attract the eye? The pictures above are of the same piece of plastic under a different type of lighting to give you a sense of how dramatic the change in color is. Use this to your advantage when placing your art.
The 5 Issues :
1. Non-direct natural light is best. If the light source is from a series of windows, diffuse any excess light with window dressings like shears or draperies.
2. Avoid direct sunlight. It will wash out all colors and eventually ruin photographs and other fine arts.
3. Avoid fluorescents when possible. These give off harsh light and gives things a different color tint. Further, many people report having migraines if subjected to fluorescents for an extended length of time.
4. Be careful with halogen spotlights. Not only are they bright but also halogens spotlights are known to give off heat. They are useable, but keep them away from any fabrics, drapes, or photographs.
5. Be careful with soft white or yellow colors. Yellow lights are, well, yellow. They offer a wonderful mellow warming effect against cool colors like blue. However, too much yellow will change the color.
All lights have their uses. It is impossible to say that you should use only this type or that type of light every time. Determining the effect that you want the lighting to have in a room before hand will aid you in choosing the types of lighting that will go best for your situation.