Lighting has been an essential part of our lives since civilization. Lighting can provide us with visibility in dark places, set the mood of a space, and increase safety. Lighting has come a long way since those early days. Modern lighting technology has become increasingly sophisticated, with energy efficiency and technological advances driving much of its improvement. The main types of modern lighting are incandescent, energy efficient or “green” lighting, and LED. Incandescent lighting is the most common, and uses a filament found in a glass bulb to convert energy into heat and light. This type of lighting is not energy efficient, much of the energy is wasted in the form of heat rather than light. Energy efficient lighting has become increasingly popular for its energy efficiency and low maintenance. These types of lighting typically include compact fluorescent lights (CFLs) and light emitting diode (LED) lights. LED lighting is the latest development in lighting technology, and is quickly becoming the most popular type of lighting. LED lighting is highly efficient, converting almost 90% of its energy into light. It also has a very long life span and is much less likely to get hot, making it safer than other types of lighting. Lighting is an essential part of any home or business. With modern technology, it is possible to find lighting that is energy efficient, bright, and long lasting.