I got these connectors from Off Road Only (offroadonly.com). The company delivers them with their LightDOTs. They are really cool and not actually a crimp connector at all. There is solder in the middle of them, and the clear plastic acts like a waterproof heat-shrink. So, when I heat the thing up, it both solders and seals the joint without any need for an actual soldering iron or a crimping tool. While ORO won’t sell them separately, you can find them online at Digikey (digikey.com).