I saw your earlier posts somewhere you wrote "you are working with electronics from your childhood. You have more practical knowledge than theory." You can make a LED lamp as your hobby project.
You can buy it from from your nearest electronics shop. Now a day it is available even in small towns and cities. or You can buy it from flipkart.
**broken link removed**
You can buy it from from your nearest electronics shop. Now a day it is available even in small towns and cities. or You can buy it from flipkart.
**broken link removed**