How to use Heat Shrink Self-Solder Butt Splice Connectors, non crimp, crimp and solderless styles

https://amzn.to/2WWlQX9 - 165PCS Solder Seal Wire Connectors, ELECTRAPICK Solder Seal Heat Shrink Butt Connectors Terminals Electrical Waterproof Insulated Marine Automotive Copper Connectors EASY AND FAST OPERATION: 1 Step solder and seal process for all your connections, insulated and sealed. Just strip your wires, insert them into the connector and apply heat. INSULATION AND WATERPROOF: Insulation tubing has unique dual-walled design-Polyolefin tubing in outside and hot melt rings in inside effectively improve waterproof performance to make sure the best results. EASY IDENTIFICATION - Color-coded tubing makes it easy to identify the right size of the connector for every application. Measure your wire, and easily choose the right connector by looking at wire size chart on the box. WIDE APPLICATIONS: Comply with all relevant standards, Shrinking ratio: 2:1. Ideal used for Automotive, Marine and other Outdoor Applications. GUARANTEE AND FRIENDLY CUSTOMER SERVICE: We have a commitment to every buyer 100% satisfaction. If you have any problem about our products, just contact us anytime you feel convenient.