LED-525 is a type of electronic light-emitting diode (LED) made by Fix&Fasten. It is a 5mm, rectangular package, with two leads. It is available in a variety of colors, including red, orange, yellow, green, blue, and white. The LED-525 can be used for general purpose lighting applications, such as indicator lights on security systems, display backlights, and emergency vehicle lighting. It is designed to be reliable and efficient, with a high brightness relative to its small size.