常用的光源有两种,即日光和人造光。人造光源又分为:一是热光光源,如白炽灯、碘钨灯等;另一是冷光光源,如黄光灯,冷阴极荧光灯等。主灯常用的有吊灯和吸顶灯。局部照明和辅助性照明常用壁灯、台灯、落地灯等。室内照明光源的选择和使用如下: There are two commonly used light sources, namely daylight and artificial light. Artificial light sources are divided into: first, hot light sources, such as incandescent lamps, iodine tungsten lamps; the other is a cold light source, such as yellow light, cold cathode fluorescent lamps. The main lights commonly used are chandeliers and ceiling lamps. Local and auxiliary lighting commonly used wall lamps, table lamps, floor lamps and so on. The selection and use of indoor lighting sources are as follows: