Lemonbest 12V DC Female connector Plug Adapter for led light strip & power adapter (5 pcs) Screw terminal strip for connecting power wires Product Name : DC Power Connector;Connector Type : 5.5x2.1mm DC Power Jack Female can be used for the single color 3528 5050 SMD led strip light, easy to connect your power transformer. Size for one:3.8*1.4*1.2cm