Lighting refers to the use of light sources to illuminate indoor and outdoor space and provide a comfortable living environment. It is an important part of interior and exterior design, and also plays a role in safety and life. Lighting can come in a variety of different forms such as natural lighting, artificial lighting and energy saving lighting. Natural lighting, such as sunlight, exists naturally and is definitely the most economical lighting source. Artificial lighting such as Lamps and chandeliers can be designed to fit various interior preferences as well as be programmed to adjust the temperature, color and luminosity. Energy saving lighting such as LEDs and CFLs are becoming increasingly popular due to their high efficiency and long lifespan. Selecting the appropriate lighting solution for a particular space requires knowledge of a variety of factors such as the size of the space, the furniture and color scheme inside the space, the type and location of windows, ceiling height and the season. Finding the right balance between natural and artificial lighting will ensure a pleasant living space. In summary, lighting is an important factor in creating a comfortable and safe living environment. Finding the right balance between natural and artificial lighting is key to achieving a satisfactory living environment.