Light is an important aspect of life. All species on earth use light in some form or another. For humans, it gives us light to see during the day and helps us sleep better at night. Lighting, or artificial lighting, is the manipulation of light sources to provide desired effects of visibility, safety, security, comfort, and ambiance. Lighting is applied in many different environments for many different reasons. Street and roadway lighting provides safety to those travelling in the dark, while office building lighting can increase productivity. Seasonal decorations during holiday months like Christmas and Halloween provide a fun, uplifting atmosphere. Architectural lighting complements the look and feel of a building, helping to enhance, define and project its identity. Lighting is also used for display purposes in art galleries as well as store shelves. Lighting can create a mood and attract attentions for the items being lit. Lighting technology has come a long way in recent years, and there are now many more options available, including LED, compact fluorescent, and halogen. LED technology is particularly popular due to its energy efficient advantage over its counterparts. It is increasingly used in street lights, residential areas, and other areas requiring bright, energy-efficient lighting. It is estimated that lighting accounts for 12% to 15% of the total energy consumption in buildings today. This makes energy efficient lighting solutions extremely important if we want to reduce energy consumption. Lighting designers, engineers, and architects are all incorporating energy efficient solutions into their designs to reduce energy costs and have a positive environmental impact. Lighting is an essential part of our lives and without it, there would be no life at all. While we may not always realize it, lighting plays an important role in how we live, work, and play every day.