Solder Seal Wires Heat Shrink Butt Connectors 400Pcs 12-10 Awg Yellow Waterproof

What is this?Solder seal wires connectors are mainly used for wires connection, widely used in electrical appliances, home, laboratory, outdoor, DIY, etc.What will I get?Solder seal wires connectors, is in size of: 12-10 AWG, 4-6mm² wires range, 138°C solder temperature, 80°C shrink temperature, -55°C to 125°C working temperature, 40mm x 7.8mm/1.57-inch x 0.31-inch(L*W)In the package of: 400pcs x Solder seal wires connectorsIs there any advantages of the product?Heat shrinkable, waterproof, can be used in a wet environment, suitable for indoor and outdoor use; Good insulation, can be widely used in the electrical application; Clear, the connection of wires can be clearly observed, which is convenient for useHow to use it?Steps of installation: 1. Select solder seal wires connectors of appropriate size; 2. Screw the two stripped wires together; 3. Put the wires into the solder sleeve; 4. Heat with hot-air gunWhat should I notice?Please pay attention to the selection of solder seal wires connectors with appropriate size, especially the wires range of solder seal wires connectors