Here you have the gimmick! Electronics knowledge test! What is the secret component?

Original video clip: https://youtu.be/8Q3lCtxgrw0
The clue: https://youtu.be/zhfKgdVWtCI
WebSite: https://sorinelectronics.co.uk/
USB power meter: https://amzn.to/3CRjsbZ
Thermal video camera: https://amzn.to/3ECIqfY
ST-862D Hot Air: https://amzn.to/3eqDOQ2
Electric Screwdriver: https://amzn.to/3cgMAfy
Rosin colophony: https://amzn.to/3X97Vwi
CPB Heating Pad https://amzn.to/3Fm4IUa
Low thaw solder: https://amzn.to/3T6mHBD
Wick cord: https://amzn.to/3CHWYdc
Tweezers: https://amzn.to/3SKTA7h
Members: https://www.youtube.com/channel/UCooKQlg-HZ0PFAPc4Ymg3RA/join
Patreon: https://www.patreon.com/electronicsrepairschool
Dissonance: http://invite.ers.repair/