What is an indoor light?
luminaire for interior space The general term for lamps used in indoor living and working environments. This kind of lamps has both decorative function and lighting function. The light source used is incandescent lamp (including tungsten halogen lamp) or fluorescent lamp of a kind of shape and power. Room lights can be divided into 6 categories according to the installation form: embedded lights, ceiling lights, chandeliers, wall lights, mobile lights and track lights. Embedded lights are embedded in the ceiling and only emit downward light.
2 recessed lights
is a general lighting fixture that is embedded in the ceiling and emits only downward light. There are various indoor lights such as diffuser cover, prism cover or grille on its light exit surface.
The OA lighting used in office automation lighting is a type of embedded lamp that strictly controls the brightness of the light exit surface in the direction close to the horizontal angle. It makes the image of the lamp on the fluorescent screen of the computer very light, thereby reducing the interference to the content displayed on the screen. Most embedded lamps have a symmetrical light distribution. Only a few lamps that illuminate a wall or a certain vertical surface are installed on the adjacent ceiling and emit asymmetrical light distribution.
3 chandeliers
A type of decorative lamp that hangs on the ceiling in a conspicuous place in the room. According to the light-emitting situation, it can be divided into four types: full diffusion, direct-indirect, downward lighting and light source exposure.   ①All diffusion type. It emits light to the surroundings and has the dual functions of lighting and decoration. In order to achieve a good decorative effect, color translucent lampshades and dimmers are commonly used to control the brightness of the light source.
Direct-indirect type. There are many upward and downward rays, and few horizontal rays. It is often installed at a height close to the line of sight and used for lighting at dining tables, fast food restaurants, etc. Some of the lamps with adjustable hanging height are used for enhanced lighting when pulled down, and used for general lighting when pushed up.
Downward lighting type. The emitted light will produce a strong shadow. It is used for enhancing lighting in halls, aisles or stairs. It should also be equipped with general lighting when used in the room.
The light source is exposed type. It uses high-brightness luminous bodies to get sparkle and excitement, focusing on decoration. Generally, bare low-power light sources are used and installed in a space above the line of sight. When hanging low, use a low-brightness light source or use a dimmer to reduce the brightness of the light source, and use a light-colored wall behind the lamp.

4 wall lights
Lamps installed on walls, building pillars and other facades. The installation height is closer to the horizontal line of sight. Therefore, it is necessary to strictly control the brightness of the light-emitting surface. According to the luminous situation, it can be divided into four types: light source exposure, diffuse, strip and directional lighting.
Indoor lights
The light source is exposed type. Often used as decoration. Some are also equipped with transparent, beautiful-looking lampshades.
Diffuse type. Use a small translucent lampshade, and the surface brightness is low. It is often installed in pairs on both sides of the walkway, portico and mirror.
Strip type. Use a fluorescent lamp or more than one side-by-side incandescent lamp as the light source, with a long and narrow shape. It can be used not only as local lighting for lighting work surface, but also as general lighting. Installed above the mirror, in the aisle and hallway.
Directional lighting type. There is a strong upward or downward light. The upward lighting is mostly used for general lighting, and the downward lighting is used for enhanced lighting.