Precautions:
The 4 pins in the connectors should totally penetrate the 4 copper contacts on the WATERPROOF LED strip to ensure good electrical conductivity.
So, when you cut your LED strip into 2 LED strips, you should cut very carefully along the cutting line, to make sure the area of the copper contacts on the 2 LED strips are the same (not a bigger area of copper contacts on one LED strip, and a smaller area on the other LED strip). If the area of the copper contacts on the LED strip is too small, then the 4 pins in the connectors can not totally penetrate the 4 copper contacts, and there will be poor electrical conductivity. As a result, you may get only 2 different colors or even no colors at all.
Installation Instructions:
1.Carefully cut off the WATERPROOF RGB 5050 LED strip along the cutting line, so that the area of the 4 copper contacts on each LED strip is the same.
2.Remove the tape on the backside of the LED strip around the area of the 4 copper contacts, to expose the 4 copper contacts.
3.Make sure to match the + electrode on the connector to the + electrode on the LED strip.
4.Adjust the contact points between the 4 pins in the connector and the 4 copper contacts on the LED strip, to make sure the 4 pins in the connector can totally penetrate the 4 copper contacts on the LED strip. Then use your finger to press a little hard on the LED strip so that the 4 pins in the connector can go through the 4 copper contacts on the LED strip and then go into the LED strip a little.
5.Close the LED strip in the connector, make sure the 4 pins in the connectors totally penetrate the 4 copper contacts on the LED strip.