Lighting is important in our daily life. It is essential to provide proper, comfortable and safe visual environment for us, especially for office workers. There are many types of lighting. Natural lighting is by far the best and free lighting, but sometimes it can't reach certain places or times of the day, so using artificial light becomes unavoidable. Artificial light includes overhead lighting, task lighting, accent lighting, spot lighting, etc. Different lighting gives different atmosphere. Overhead lighting is suitable for large, public spaces such as office, school and gym, as it provides even and shadow-free general illumination. Task lighting is for specific activities, like reading, writing and sewing. Accent lighting will emphasize some specific items or area while spot lighting will put a focus on a single item such as a painting or sculpture. Lighting is also critical in creating a secure environment. Security lighting is used to provide enough illumination in dark areas and areas of public activity. So lighting is an important part of our life and it is important to choose the right lighting for the right environment.