Three steps to finish wire connecting with No screws and solidering:<br />1. Press the spring clip<br />2P Spring Connector for 3528 5050 led strip<br />Size: 2cm x 1.8cm x 1.2cm - 0.78inch x 0.71inch x 0.47inch<br />3. Release the press clip<br />Material: PVC・ Metallic Spring<br />2. Insert wires ( please correctly connect for + and -)<br />Packing Details: 30Pcs 2P Spring Connectors