Solder shrink connection set for 10 serial connections

The most reliable connection technology in outdoor lighting. The solder shrink connectors contract under heat and the integrated solder begins to melt. After completing the heating process, we have a 100% secure industrial cable solder connection which is already waterproof. So that the water cannot be transported further between the space between the cable sheath and the inner conductor, a shrink tube with adhesive is pulled over it and shrunk. Thus we have a 2-fold security against ingress of water. 
 
The set includes:
30 pcs. Solder shrink connectors (3 per connection from one lamp to the next, 2 for the last lamp) 
10 pcs. 12cm heat shrink tubing pieces 18/6 with glue
Instructions for assembly