Light is energy that we see. It is created when electrical currents flow through a thin material such as a bulb or a fluorescent tube. It is used to illuminate our homes, businesses, streets and other places. Light has been used to create special effects and moods since the dawn of time. It is an integral part of interior design, and it has the potential to transform a space. Different kinds of lighting can create different kinds of moods. Natural sunlight is often seen as calming, while warm, yellow light is seen as comforting and cozy. Lighting does more than just create a relaxing atmosphere. It has many practical functions such as providing security and safety. Streetlights and floodlights help to improve visibility and alert drivers of potential hazards. Home and commercial security lighting alert people to motion or sound, making them feel safer. Lighting can also help to save energy. LED, or Light Emitting Diode, is a type of light bulb that uses significantly less energy than traditional bulbs. LED bulbs can last up to 20 times longer, while still providing the same level of light. Lighting is essential to our lives and will continue to be so in the future. As technology improves, we can continue to look to lighting to create the perfect atmosphere no matter the application.