AspenTek Dc Female Power Cable Connector Plug Which Allows Led Strip Light to be Connected to 12v Power Adapter(10x Female DC Power Connector) DC Power Cable Female Connector Plug for 12-24v led light,CCTV camera Screw terminal strip for connecting power wires Easy to operate and firmly connecting Solderless power cable connectors Diameter of connector: interior 2.1mm ; exterior: 5.5mm