12MM LDR CDS GM-12516

The Light Dependent Resistor (LDR) or also popularly known as Photoresistor is just another special type of Resistor and hence has no polarity so they can be connected in any direction. They are breadboard friendly and can be easily used on a perf board also. The symbol for LDR is similar to Resistor but includes inward arrows that indicate the light signals. Photoresistor or LDR (Light Dependent Resistor), as the name suggests will change it resistance based on the light around it. That is when the resistor is placed in a dark room it will have a resistance of few Mega ohms and as we gradually impose light over the sensor its resistance will start to decrease from Mega Ohms to few Ohms.This property helps the LDR to be used as a Light Sensor. It can detect the amount of light falling on it and thus can predict days and nights. So if you are looking for a sensor to sense light or to distinguish between days and nights then this sensor is the cheap and modest solution for you. LDR FEATURES:?Can be used to sense Light.?Easy to use on Breadboard or Perf Board.?Easy to use with Microcontrollers or even with normal Digital/Analog IC.?Epoxy encapsulated.?Quick response.?Small size.?High sensitivity.?Reliable performance.?Good characteristic of spectrum. Applications:?Detect Day or Night.?Position sensor.?Used along with LED as obstacle detector.?Automatic bedroom Lights.?Automatic Rear view mirror.?Light intensity control.?Automatic Focusing.?Electronic Balance.?Light-control system.?Security System.?Colorimetic devices.?Densitometer.?Small Night Light.?Street Light.?Flame Detector.?Backlight control.?Light adjusting application.?Ambient light detecting.?Camera auto exposure control.?Automatic headlight dimmer.?Night /treet light control.?Photoelectric control.?Industrial control.?Light-controlled toys/ switch.