Review on ⚡️ Qibaok Electrical Waterproof Automotive Connectors: Reliable and Efficient Solutions by Will Anderson

Heat Shrink Butt Connectors are made from very cheap heat shrinkable plastic insulator. It doesn't shrink from the lighter before the wire insulation starts to melt, and when you crimp the connector the plastic tears from the crimp. They are very cheap, do not buy this product. I feel like manufacturers laugh at those who buy this crap because they should know it's junk.