➢Step descriptions:

✦Step 1:-Solder the transistor and led together, 4 groups

✦Step 2:-Connect them.

✦Step 3:-Solder the water line

✦Step 4:- Pull the water to have a try.

『LED』  view more ⇒ https://www.utsource.net/category/led-lighting-1.html

Video on Yotube: