Skip to product information
1 of 4


Light Sensitive Photoresistor LDR Small

Light Sensitive Photoresistor LDR Small

Regular price Rs. 24
Regular price Rs. 29 Sale price Rs. 24
Sale Sold out 17% off Best Price Guaranteed
You save Rs. 5
Incl. GST (No Hidden Charges)
Currently, people are actively checking out this product.
Submit your Bulk Enquiry Here

Contact form

  • Material: Semiconductor Materials having high resistivity like Silicon or Germanium and copper
  • Shape: Round
  • Also called photoresistor, photocells, photoconductor and photo conducting cell

Light Sensitive Photoresistor LDR Small

LDR Stands for Light Dependent Resistor and its Resistivity varies with Incident Electromagnetic Radiations so, its resistivity is a function of Incident Electromagnetic Radiations or light. Other names of LDR are photoresistor, Photoconductor, Photocell, and photo-conducting cell

Read more: How LDR Sensor Works

The LDR sensor is made of Semiconductor materials with high Resistance like Silicon or Germanium. It is a light-sensitive device, so this resistor has a different resistance value day and night as given below:

  • Daylight: 5000Ω
  • Dark: 20000000Ω


  • It requires less power to operate
  • Quick Response
  • Easy to use
  • Generate high current

Read our blog on LDR Sensor detailing what is LDR, the working principle of LDR, Variations in resistance to change in light intensity, types, advantages, disadvantages, and applications of LDR sensors.


  • Camera Exposure Control
  • Auto Slide Focus
  • Photocopy Machines
  • Colorimetric Test Equipment
  • Densitometer

Also check LDR 5mm Metal Housing (Pack of 5) available on the Robocraze website. The Light Dependent Resistor (LDR) is a semiconductor device made of materials like Silicon or Germanium. Its resistivity varies with incident electromagnetic radiations or light, with resistance values of 5000Ω in daylight and 20000000Ω in the dark. The product features quick response, low power consumption, and high current generation. It is commonly used in applications such as camera exposure control, auto slide focus, photocopy machines, colorimetric test equipment, and densitometers.

Package Includes:

  • 1 x Light Sensitive Photoresistor LDR Small


Diameter (mm) 12
No. of Pins 2
Maximum Voltage(V) 250 VDC
Operating Temperature (°C) 30˚C to 70˚C
Dimensions  5 x 4 x 3cms 
Weight  5 grams

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

View full details

Found a better price?

Let us know!
We'll try to match the price for you

  • ⚡ Dispatched within 24 hours

  • 💰 Earn RC Coins on every purchase

  • 🚚 Free shipping on orders above Rs 500/-

  • 🛠️ Dedicated Technical Support Team

1 of 4