Lighting equipment in general places can choose 220V voltage.
Lighting is the use of a variety of light sources to illuminate work and living places or individual objects. The use of the sun and sky light is called "natural lighting"; the use of artificial light source is called "artificial lighting". The primary purpose of lighting is to create good visibility and a comfortable and pleasant environment.
Interior design lighting is a variety of architectural environment, illuminance, color temperature, color rendering index and other professional design. It is not only to meet the indoor "brightness" requirements, but also to play a role in the environment, atmosphere. Generally requested by the interior architects, electrical engineers for accounting, adjustment. At the same time also refers to the action of lighting or lighting the state of being illuminated.
In the movie shooting, the use of natural light or artificial light of an art. Involving the use of lighting equipment, light design, scene layout, light level, light ratio, shadow and light effect of the determination of the lens lighting treatment, etc., is an indispensable means of cinematographer's creativity (see the art of film modeling, film lamps).
Lighting design should be people-oriented, but must first consider the safety and practicality, as well as illumination requirements, installation methods, maintenance methods, and then finally combined with humanized creativity, a good lighting design, must have the above prerequisites, in the lamps and lanterns have been related to the relevant articles, lighting design can be referred to the Jurassic Lighting related literature.
Lighting is the use of artificial light or natural light to provide people with sufficient illumination, or to provide good identification (road lighting, advertising signs, etc.), the emphasis of the characteristics (architectural lighting, accent lighting, etc.), or to create a comfortable light environment (residential lighting, etc.), to create a special atmosphere, etc. (commercial stage lighting), as well as other means of special purposes (biochemical, medical, botanical cultivation, etc.).
Law of voltage
Voltage is what drives the directional movement of free charges to form an electric current. The current is also able to flow in a wire because there is a difference between a high potential and a low potential in the current. This difference is called the potential difference, also called voltage. In other words. The difference in potential between any two points in a circuit is called the voltage at those points. The letter U is usually used to represent voltage.