These solder-less connectors are idea way to link two pieces of LED strip light together, the 180 degree connectors allow you to link LED strip lights together in a perfect right angle and eliminate the time consuming task of soldering. The plastic connectors simply open up and allow 5050 RGB LED strip to be inserted, once closed they provide a strong connection which will provide power to the LED strips. 

Installation tips: 

1.If you have a waterproof LED strip, should peel off silicon on the surface around soldering line area and gently slide in the strip light into the connector body and you'll feel the connector grab the ribbon. 

2.If you have a non-waterproof LED strip, just slide in the ribbon and make sure positive and negative poles match.