Lighting is an important aspect of our lives, whether it's the sun lighting up the sky or the light bulbs that provide us with illumination indoors. It produces a pleasant atmosphere and can make a room come alive. Lighting also provides a sense of visual security, helping keep us safe. The most common type of light source is the incandescent lamp, which is in the form of a bulb. It generates light when electricity is passed through the thin metal filament in the bulb. This produces light and heat at the same time, making it the most energy-efficient type of lighting. LED lighting has recently become increasingly popular. LED (light emitting diodes) lights are a type of lighting which use much less energy than incandescent bulbs, meaning that they are cheaper to use and kinder to the environment. LED lights are also very long lasting, meaning that you have to replace them less often than traditional lighting. Task lighting is often used to reduce eye strain and improve visibility for specific tasks. This is usually achieved by using recessed or track lighting. These lights are focused on the specific task area, helping better illuminate the workspace. Lastly, ambient lighting is used to create a relaxed and calming atmosphere. This is achieved by using soft, dim lighting. Such light sources can help to provide a warm, peaceful atmosphere. Lighting is an essential part of our lives, and with the advancements in technology, there are now many energy-efficient ways to achieve the illumination that we need.