Qaoquda DC Power Connector 5.5mm x 2.1mm (2 x Male + 2 x Female) to 2 Screw Terminal Female AUX Headphone Balum Converter Adapter 12V 24V for CCTV Cameras/Single Color LED Strips 2 Pairs

The screw terminals are great. I dont need to get my soldering iron out to repair the plug in power to my slot car test blocks. Having a spare works out even better as I have learned that I can use an old electric train power supply to test out my cars. I can use the spare to build up another power cable.

Easy hook up to my LED awning light dimmer.

I used these to connect individually addressable LED light strands to a DC power source mid-line. The connectors never gave me any trouble at all.

perfect for the charger

One pair isn’t working, it’s cheap so what I expect