The LDR 5528 5mm Photo Light Sensitive Resistor (Pack of 5) is a widely used passive light-sensing component designed for detecting variations in ambient light intensity. Its resistance changes inversely with the amount of light falling on its surface—high resistance in darkness and low resistance in bright conditions—making it ideal for analog light detection applications.

Featuring a compact 5mm sensing head, the LDR 5528 is perfect for space-constrained circuits and breadboard-based prototyping. It delivers stable performance, fast response time, and high sensitivity, ensuring reliable operation in a wide range of lighting environments.

This photoresistor is commonly used in automatic street light systems, light-following robots, night lamps, alarm circuits, camera light meters, and smart home automation projects. It can be easily interfaced with Arduino, Raspberry Pi (via ADC), ESP32, AVR, PIC, and 8051 microcontrollers using a simple voltage divider circuit.

Supplied in a pack of 5, this LDR set is ideal for students, hobbyists, and electronics professionals working on multiple projects, classroom experiments, or bulk prototyping.