Mason jars and leds are almost made for eachother. They are eye appealing and just plain fun. I am going to show you how to make a very simple one that involves a few cheap componets you can find anywhere online! This could be considered an introductory project for those new to electronics but why set limits? You like it you make it :) lets get started and embark on the simplicity!
This LED mason jar turns on by itself at night.
Step 1: things needed
You are going to need;
One mason jar
One 5mm led (color of your choice)
One 3volt button battery
One 82k resistor
One 2n3904 switching transistor
Hot glue gun