faston connector for headlight mod

[darrsi]

What's the difference between that tape and heat shrink?

Heat shrink is better, as long as you own a heat gun to shrink it with which most people won't.
With self amalgamating tape you just stretch it, wrap it round whatever then it sticks to itself, it's waterproof and also really easy to use.
The only downside to the tape is that it can degrade a bit if fully exposed to the elements although it will take quite a while, but that can be fixed easily enough by just replacing it. It's way better than electrical tape though.