Our Amazon Store - https://www.amazon.com/shop/everydayhomerepairs  
I have seen this type of failure in about half of the homes we have renovated over the past 2 years.  This is an extremely common mistake and often one you will not know about until you start to have failures at your light fixtures or smart home light switches.  I will show you 2 solutions for this issue and better prepare you for future home improvement projects.

Wago 221 Lever Nuts
Starter Kit:  https://amzn.to/3LuMRdE
My Favorite Kit:  https://amzn.to/3DmNPWl
Assortment Pack:  https://amzn.to/3JVAlDn
3 Wire Connector (50 pack):  https://amzn.to/36DM62Z
2 Wire Connector (100 pack):  https://amzn.to/36Yx2wO

Free Home Maintenance Checklist:  https://everydayhomerepairs.com/home-maintenance-checklist/

Testing Wago 221 (60 Amps) on Silver Cymbal Channel:  https://www.youtube.com/watch?v=B1pmuRsf1co&t=6s

Chapters
0:00 Demonstration of Most Common Mistake
1:04  Proper Wire Nut Installation (Stranded and Solid Wire)
5:13 Our Favorite Tools For DIYers
5:55 My Prefered Wire Connector For DIYers
8:37 Example Of The Holding Strength of Wago 221 for Stranded Wire
9:58 Recap

DISCLAIMER: This video and description contain affiliate links, which means that if you click on one of the product links, I’ll receive a small commission.