The maximum number of LED strips you can link together will depend on the power output of each strip and your power source. Strip lights can be linked together with the help of connectors, cables, or soldered connection points. I you have the smallest idea how they work, it's actually not hard at all to connect them together. There are also strip lights that are already connected, you just have to attach them to the right place. I ordered this kind of light from vont.com, they just perfect for my car.