Hello guys, Welcome to Africa's Largest Video Search Engine, and you are watching Normally open tactile push button switch. How to insert into breadboard and use in an LED circuit.. and this video is uploaded by electronzapdotcom at 2016-09-05T12:33:39-07:00. We are just promoting this video only for entertainment and educational purpose only. I hop you like our Video Search Engine. [TIBa_RQB3Ek]