Lighting has been a human invention and an integral part of human civilization for centuries. It is a form of technology that is used to provide illumination in houses, buildings, and streets, either natural or artificial. We can find many different types of lighting in todays homes. LED lights are the most common, due to their energy efficiency, reasonable cost and long life. Incandescent light bulbs and halogen lamps are also common in households. Natural light is also used to provide illumination in homes. This is usually done through the use of large windows, skylights, or solar tubes. Lighting not only provides illumination but also sets the mood in a space. For example, in a bedroom, a warm yellow or amber light can be used to create a calm and inviting atmosphere. In a living room, bright white or blue lights can be used to create an energized and stimulating atmosphere. Lighting also plays an important role in commercial buildings, such as shopping malls and office buildings. Proper lighting can make a space look more welcoming and inviting, thus attracting more customers and visitors. Lighting is also important for safety and security. Proper lighting can make a space feel more secure by providing illumination in dark areas. Proper lighting can also lead to a reduction in crime due to increased visibility of suspicious activity. In conclusion, lighting is an essential part of human civilization. It provides illumination, sets the mood in a space, and can increase safety and security.