An LED indicator is a small light that uses light-emitting diodes to show the status of a device or system. These indicators are commonly found on electronic devices like computers, televisions, and home appliances. They can signal various states, such as power on/off, charging, or error conditions, making it easy for users to understand the device's operation at a glance. LED indicators are energy-efficient and have a long lifespan compared to traditional bulbs. They come in various colors, each often representing a different status. For example, a green light might indicate that a device is functioning properly, while a red light could signal a problem or alert.