Lighting can be defined as an essential part of indoor environment design. It is one of the most important aspects that impact the ambience, atmosphere, and overall look and feel of interior spaces. Therefore, it is essential to think about lighting when planning how to arrange the interior of a space. Choosing the proper lighting for a room can be a challenging task if one does not have a basic understanding of the various types of lighting options. The three main types of lighting are ambient, task and accent. Ambient lighting is general lighting and is used throughout the entire room to create even lighting for basic tasks. Task lighting is supplemental lighting that helps people complete specific tasks by providing focused lighting areas in specific areas. It can be used to create more even lighting for tasks such as reading, cooking, or applying makeup. Accent lighting is used to highlight and emphasize specific architectural features or pieces of art. Lighting has a major impact on how we perceive the environment. Different types of lighting can be used to create various moods, such as calm and relaxing or modern and vibrant. When choosing lighting for a particular space, it is important to consider the size of the room and what activities will take place in it. The kind of lighting that works in a small bedroom could be completely different than that which works in a large open living room. The right type of lighting can make a huge difference in how comfortable a space feels. It can be used to create the perfect atmosphere and help foster productivity or provide a calming effect for relaxation. Regardless of the purpose, lighting should be carefully considered when planning the interior design of a space.