?Widely used: used as a connector between a LED strip and a Controller, or used as a connectorbetween two LED Strips.for 10MM SMD 5050/3528/2835 RGB LED strip lights, LED strip extension cable and RGB splitter connector?EASY to USE: Just plug in and play, no soldering needed, 4 pin connector fit tightly to ensure the perfect connection. Time saving, simple and flexible?FIRM CONNECTION: Although it is soldering free connection, it still offers a firm, stable connection without loosening when encounters kick or move?GREAT CONDUCTIVITY: Copper Electroplated pins ensuring perfect electric conductivity 20 PCS 4 Pin Male Connector Connecter for 5050 2835 3528  SMD RGB Led Strip Lighting Features: 20PCS Copper Electroplated Connector Between LED Strip and Remote Controller Compatible with SMD 3528/5050/2835 RGB LED Strip Lighting Easy Insert and Extract to Use Package Includes: 20 PCS - 4 Pin Male Connector Warm Reminder: For application with 10mm wide SMD RGB 5050/3528 RGB LED strip lights that are pre-slodered with a 4pin female interface, please make sure your LED strip is 10mm wide if you need to directly solder the 4 pin male connector to the 4 copper contacts on your LED strip, .