➢Step descriptions:

✦Step 1:-Controlling the lighting time of a led

✦Step 2:-Increasing resistance capacity 

✦Step 3:-The led lighting lasts approx.2 min 

✦Step 4:-Building circuit in a protoboard 

✦Step 5:-You can also add a relay

Product link on utsource.net

『 LED 』 view more ⇒


『Capacitor 220uF 』 view more ⇒


5% OFF using BOM

Link of the video on YouTube: