These connectors allow you to connect cut segments of our 4-conductor Multi-Colored SMD 5050 LED strip lights together, strip-to-strip with no gap in-between. Typically, this is used for connecting cut LED strips together end-to-end for a continuous effect: cut each strip on the cut line, connect the cut led strips, and continue with the LED strip. To use: First unlatch the white connector, then gently slide the ribbon into the connector (make sure that the positive side on the connector matches up with the positive side on the strip) and close the white connector. Note that if the backing protecting the adhesive on the back of the ribbon has been removed, the ribbon will be a little thinner than usual and the connector may not hold the ribbon securely. If that is the case, or if the connector won"t grab the ribbon for any reason, just put a small piece of masking or other tape on the back of the ribbon to make it thicker so the connector can hold it. Do not put the tape on the top of the ribbon or the connector won"t connect properly. If you experience trouble with the connectors, try connecting them when the strip"s power is on (the low-voltage strips are not harmful to touch, even when powered on), and set the color on your remote to white. This will allow you to see when the connectors are working because the connected strip will light up white once the red, green, and blue channels are working properly.