The LDR 5mm (Light Dependent Resistor) is a versatile component that reacts to light intensity, making it ideal for use in light-sensitive applications. This compact 5mm sensor is widely used in automatic lighting systems, solar energy projects, photo-sensing circuits, and other DIY electronics. As the light levels change, the resistance of the LDR varies, providing an easy way to detect and respond to light conditions. Its affordability and reliability make it a popular choice for electronics enthusiasts and hobbyists in Bangladesh, enabling countless applications in automation and energy-efficient systems.