Found this on Face Book, it's a wire connector inside a heat shrink tubing that has a metal connector that is made out of low temperature solder and can be activated with a heat gun of small torch, once heated the connector becomes water proof
I could have used them 30 years ago. Alas, too late for me.
Dictated by Tom, typed by Carrie, Tom's daughter.
Tom Trigg
yea but you miss those sore fingers from twisting on wire nut and smelly fingers from silicone, let Tom know I sent him a message on personal and if he has time to answer it, thanks, Bill
Put "invent a reason to get this" on my project list!
Get the Garden Railways newsletter delivered to your inbox twice a month