Single Color LED of various sizes
If you are interested in learning working of various types of LED's then check this tutorial on LED:
https://www.dnatechindia.com/Tutorial...
You can buy various Types of LED's are available online in India from DNA Technology. We have LED's of various Colours (Red, green, White, yellow, blue) and various sizes (3mm, 5mm, 10mm) as well.
We also have 4 PIN RGB led and 3 pin Bi color LED's as well.
Link for Buying LED: https://www.dnatechindia.com/buy-led-...
DNA Technology is an Online Electronic component shop in India: https://www.dnatechindia.com/