Lighting is a critical factor in the physical environment. Quality lighting provides ambient light that has a direct effect on our mood and energy level. It also serves to reduce accidents, improve security, and provide functional task lighting. Poorly designed lighting systems cause glare, which can lead to eye fatigue. Accidents are more likely to occur when lighting is inadequate. Even the most beautiful interior spaces can become a hazard if lighting is ineffective or nonexistent. Security is improved when lighting systems are designed to provide illumination in all areas with special attention to dark and/or hard to see corners. Proper illumination is essential for completing little or big tasks in our homes. Task lighting needs to be at the appropriate intensity and angled correctly to avoid glare. From reading books in bed or navigating your way through a dim hallway, ambient lighting and task lighting elements should be considered in creating an overall good lighting system. Today, lighting systems have become even more advanced and efficient. LED lighting is a popular option since it saves energy and money. Many new fixtures are adjustable, allowing us to control the intensity of light with the flick of a switch. This means that we can actually change the mood of our home or office to suit any activity we are doing. Lighting is an art form that can transform a house into a home. Quality lighting can make an interior space look its best. Lighting is an important part of any building design and can be a key element in creating a comfortable and safe atmosphere. Investing in a quality lighting system can make a huge difference in our well-being and sense of security.