Lighting is the scientific practice of using light to solve problems. Lighting professionals use artificial lighting systems to create and/or maintain an adequate living or working environment. Lighting engineers help to reduce energy consumption, create more efficient and comfortable lighting environments, save money on electrical bills, and improve safety in public buildings, roads and lighting systems. Modern lighting technologies are constantly evolving, offering new and more efficient options for lighting specialists to use in their projects. LED and OLEDs are transforming indoor and outdoor lighting choice and options. LEDs are power positive meaning they are designed to use the smallest amount of energy while creating the most amount of illumination. With this in mind, LED solutions have become a popular choice when it comes to illuminating larger facilities, such as stadiums and commercial buildings. OLEDs, on the other hand, are thin, flat light panels that offer greater design flexibility for lighting settings and have become popular for architectural applications. They also require little maintenance and can be used in harsher environments where regular LED lamps may be unable to function. With better colour rendering, wide beam angles and their invisible heat sink, OLEDs are becoming the go-to lighting choice for many lighting projects. Lighting is an important engineering practice that has developed greatly over the years and now provides us with better lighting options than ever before. With new technologies emerging, lighting specialists have a wide range of options when it comes to designing interior and exterior lighting. This allows them to create unique, efficient and cost-effective lighting solutions that will benefit communities and individuals for many years to come.