5 pin connector-where can i get them? What are they called

This is one that I bought.

MUYI 5 Sets 18AWG Waterproof Electrical Connectors Kit 1.5mm Series Terminal & Rubber Seal with 10cm Wire Weatherpack Connectors (4 pin)
by MUYI Shop
Learn more: https://www.amazon.com/dp/B01A6M8CD8/?tag=joeychgo-20