Light-Emitting Diodes (LEDs) are semiconductor devices that emit light when an electric current passes through them. They have revolutionized the lighting industry with their remarkable efficiency and durability. LEDs consume significantly less energy than traditional incandescent bulbs and have a much longer lifespan, making them environmentally friendly and cost-effective. They come in various colors and are widely used in applications ranging from residential and commercial lighting to displays, indicators, and automotive lighting. LEDs have also enabled innovations in technology, contributing to energy-efficient displays and backlighting in electronic devices. Their versatility and efficiency have made them a dominant force in modern lighting and technology.