For the normal LED strip light without the current management IC, the maximum running length typically is 5 meters in serial connection. When the length is over 5 meters, we need to use parallel wiring.
Then what is serial or parallel connection?
-like above picture shows, the ‘B’ LED strip is connected to the end of ‘A’ LED strip, the ‘A’ and ‘B’ is in serial connection.
-like above picture shows, the ‘C’, ‘D’,’E’ are connected to the power supply separately, the ‘C’, ‘D’,’E’ is in parallel connection.
Sometimes, the space is limited that we can not connect to power in parallel for the LED strip or it is too much trouble, we could consider using the CC LED strip that maximum running length in serial connection is more than 15 meters.