Lighting is essential to our daily lives, and comes in a wide variety of forms. Depending upon the application and location, each type can have both immediate and long-term effects. Natural lighting, such as sunlight, is one of the most important sources, as it provides the essential energy needed to sustain life. Other types of lighting—such as indoor lighting, street lighting, and decorative lighting—provide illumination for various applications and may be beneficial or detrimental to our health and well-being. Lighting indoors can be used to create atmosphere and even improve mood. Strategically placing lamps and fixtures can add a cozy touch and enhance visual appeal. Bright lights are the most common source of indoor lighting; however, natural or dimmer lights can also be used, or even a combination of the two in order to set the desired ambiance. Additionally, bright lights should be avoided in natural environments such as bedrooms, as the stimulation can disrupt sleep patterns. Ideally, street lighting should be used to increase visibility and safety. Poorly maintained lighting can be a source of discomfort and can lead to decreased visibility when driving. Public safety is the primary concern when it comes to choosing street lighting, and it is recommended that communities use fixtures that provide even, diffused light. When selecting fixtures, lumen output, color temperature, and color rendering index should all be taken into consideration. Lighting can also be used for decorative purposes like accentuating sculptures, paintings, or landscapes. “Theater lighting” is a popular method used to create a dramatic effect. Focus light fixtures are used to highlight important objects, while floodlighting is more diffused and used to wash an area with light. Laser lights and color-changing LEDs are also common tools used in decorations, since they provide a wide range of effects with minimal energy use. In conclusion, lighting is a multifaceted tool that has both practical and aesthetic applications. Selecting the correct type of lighting requires careful consideration of the environment, the purpose, and the desired effect, and can result in improved visibility, performance, and overall satisfaction.