Lighting has been an essential part of human life since ancient times. It helps us at night when we cannot see anything and it also allows us to do activities such as reading and cooking in the dark. Lighting technology has advanced quite significantly during the last few centuries. We now have LED lights, halogen bulbs, fluorescent bulbs, and different types of modern lighting systems. LED lights are the most popular and they are the most energy-efficient and long-lasting lighting option. They convert 80-90% of the energy they consume into visible light and they are able to last for years. Halogen bulbs are also very common and they are very bright. Fluorescent bulbs are economical and they produce more light than halogen bulbs but less than LEDs. Lighting can be used to create an atmosphere. For example, dimmed lighting can create a romantic or tranquil atmosphere while bright lighting can bring vibrancy or energy to a room. Lighting can also be used to set the mood of a room and to make it look inviting. In conclusion, lighting is essential because it provides us with safety and efficiency. It can also be used to create an atmosphere in a room and to set the mood. With the advancement in lighting technology, we now have more efficient and long-lasting lighting options than ever before.