LED and LDR are basic electronic component frequently used in the circuitry. Generally, we have all kinds of led and LDR which includes diffused light emitting, flashlight torch bulbs for robotic projects, LDR big, LDR small, led indicator with metal or plastic casing, multicolor and size led pack, led holders. You can purchase these products online from our Robomart store or directly from our store. We believe in quality and share our quality product as per your requirement.
Today our discussion is on LED and LDR which is defined as a semiconductor with two terminals forming a p-n junction diode and emits light when activated. 1990, led were first used in lamps. Since that time, they were more valuable and changed life in commercial sector, industrial sector and outdoor lighting applications.
In electronic industry, LEDs are used in various projects for display or detecting values. These are best used for traffic light projects. LDR stands for light dependent resistor or a photo resistor having resistivity of the incident electromagnetic radiation. These are light sensitive devices and also called as photo conductors, photo conductive cells or simply photocells having high resistivity. It basically works on the principle of photo conductivity in which materials conductivity or resistivity reduces when light is absorbed by the material.
Generally, when light falls on the device i.e. when photons fall, the electrons in the valance band of the semiconductor material is excited to the conduction band. Large number of charge carriers increases due to the light falling on the device. As a result more and more current starts flowing and resistance decreases eventually.

Another topic we discussed is LDR, which stands for light dependent resistor whose resistance decreases when light falls on them. When LDR is kept in dark, its resistance becomes very high as it's named as dark resistance. When a constant voltage is applied intensity of light increases gradually as a result current too increases.

Read More
  • SKU : RM0872
    IN STOCK (404)

    Features of 3 mm IR Black LED : High reliability High radiant intensity Peak wavelength ӳ..

  • SKU : RM0321
    IN STOCK (275)

    The IR photo diode or IR receiver is a high speed & high sensitive diode. The photodiode is sp..

  • SKU : RM0286
    IN STOCK (373)

    An IR LED, also known as IR transmitter, is a special purpose LED that transmits infrared rays in ..

  • SKU : RM0655
    IN STOCK (316)

    These diffused white LED are used in different applications.Features of 10 mm White Diffused Light E..

  • SKU : RM0610
    IN STOCK (46)

    This flashlight bulb is high intensity bulb used in different flash purposes like as camera.Features..

  • SKU : RM0277
    IN STOCK (362)

    A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–n junction diode,..

  • SKU : RM1020
    IN STOCK (93)

    The Infrared Emitting Diode (IR333C) is a high intensity diode, molded in a water clear plastic pack..

  • SKU : RM0910
    IN STOCK (143)

    The LED holder is made up of metal with heavy strong giving mechanical support to LED..Specification..

  • SKU : RM0609
    IN STOCK (294)

    The photodiode is a semiconductor device that converts light energy into electrical energy causes cu..

  • SKU : RM0471
    IN STOCK (284)

    The LED is a diode which gives light when it is forward bias. Features of Red LED 3mm: Size:..

  • SKU : RM0160
    IN STOCK (42)

    Torch bulb holder with screw type bulb compatibility and metal screw wire fastener. Features of..

  • SKU : RM0369
    IN STOCK (62)

    A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–n junction diode, w..

  • SKU : RM0472
    IN STOCK (13)

    The LED is a diode which gives light when it is forward bias. Features of Yellow LED 3mm: Si..

  • SKU : RM0608
    IN STOCK (953)

    This is a 5 mm diffused type green LED offering mid High intensity Light for indication Purpose.Feat..

  • SKU : RM0276
    IN STOCK (19)

    A photoresistor or LDR 5mm - Light Dependent Resistor is a resistor whose resistance decrease..

Showing 1 to 15 of 42 (3 Pages)