With the appearance of LED, the theory of lighting design develops with the advantages of LED.

1. Scene lighting: the lamps are designed according to the environmental requirements.

Situational lighting takes the place as the starting point, aiming at creating a beautiful and gorgeous lighting environment to contrast the scene effect and make people feel a scene atmosphere.

2. Mood lighting: it is to design lamps according to people's needs.

Emotional lighting is based on people's emotions and creates an artistic lighting environment from the perspective of people.

Emotional lighting is different from scene lighting. Emotional lighting is dynamic, which can meet people's spiritual needs and make people feel emotional. Scene lighting is static, which can only emphasize the needs of scene lighting and cannot express people's emotions. In a sense, emotional lighting covers scene lighting.

Emotional lighting includes four aspects: environmental protection and energy saving, health, intelligence and humanization.