SIM&NAT LED RGB Strip Light 4 Pin Extension Solderless Wire, 8.5 Feet 4 Pin Female connector adapter cable Plug for 3528/5050 RGB LED Flexible String Light, Pack of 2 Functions  1.Connect between RGB LED strips, making it possible to install your multiple RGB LED strips in your preferred locations.2.Connect between IR/RF Controller and 5050/3528 RGB LED strips, to extend your LED strips to the ideal location where you'd like to install. So you can control your LED strips in another location. Usability  With 2 Pre-soldered female connectors, you can directly joint 5050/3528 RGB LED strips to other strips or IR/RF controller without welding with LED strip connection extension cable. Durability  Aging resistance, Corrosion resistance, Oxidation resistance, Anti-exposure. The pure copper wires inside make sure it would not run out of work even lots of flexing. Connector Type: 4 Pin Female to Female. Length: 2.5m/8.5ft Suitable for 5050 3528 SMD RGB LED Strip Ribbon Light