Review on 🔌 High-Quality 18AWG 43x2pcs Strands 10 Pairs DC Power Pigtail Cable and Jack Plug Adapter Connector by MILAPEAK - Perfect for CCTV Home Security Surveillance (2.1mm x 5.5mm) by Allen Hart

I only have one small complaint Many connections seem a little loose and you have to bend the connectors or pin to get them firmly together. I was concerned about how well the clips would hold the wire, but they are excellent if you use the right wire (see picture). If you want to use thinner wires, it's better to put some solder on the wire before inserting it into the terminals, the solder makes the wires a bit thicker and makes the connections more secure. It's definitely a good buy, but don't expect premium quality. Some are curved, some straight. I would recommend using a fingertip screwdriver (nothing touches the palm of your hand when using). A standard screwdriver allows over-tightening and removal of screws. Don't worry, they're still holding up very well. When I tested them they held over 30 pounds of weight before finally failing and it wasn't the bolted connections that caused the failure but the plastic case itself splitting in half.