Kuject 50PCS Self-Solder Wire Connectors, Solder and Seal Crimpless Heat Shrink Butt Connectors, Waterproof Insulated Butt Splice for Marine Automotive Aircraft Boat Truck Stereo Wire Joint
Brand: Kuject

Feature:
Shrinking ratio is 2:1
Waterproof for wiring splices
Transparent sleeve provides precise inspection
Easy control soldering process

How to Use:

Insert two wire to the related connector.

Apply heat to the connector slowly and evenly with a hot air gun.

Temperature operating:
Temperature that start to shrink: 80˚C
Temperature that solder ring start to melt: 111˚C
Temperature that solder ring melt completely：138˚C
Note: It means the temperature of surface of the connector, rather than the temperature that the hot air gun should set.

Package Include:
1.10 x White Connectors: Diameter 1.7 mm, able cross-section 0.25-0.34 mm²(A.W.G.:26-24);
2.23 x Red Connectors: Diameter 2.7 mm, Cable cross-section 0.5-1.0 mm²(A.W.G.:22-18);
3.12 x Blue Connectors: Diameter 4.5 mm, Cable cross-section 1.5-2.5 mm²(A.W.G.:16-14);
4.5 x Yellow Connectors: Diameter 6.0 mm, Cable cross-section 4.0-6.0 mm²(A.W.G.:12-10).

Suitable for Newbie to Try: include 10Pcs White, 23Pcs Red, 12Pcs Blue, 5Pcs Yellow.
Time Saver: solderless, crimpless, all you need is just a heat gun to finish the connection, much faster and easier than the old way.
Easy to identify: 4 color for 4 size, easy to identify and pick up for related wire.
Waterproof and Insulated: can be widely used at marine, automotive and other repair project.
Fit for Confined and Narrow Spaces: can be bent after connection and no need to crimp or solder in the confined area, just control the temperature via a heat gun.