A: Yes, you can choose to connect different sets together to make the lights longer. There is a connector on the end of each light set to connect different lights together.(Battery-powered cannot be connected to each other)
Q2: Can the lights be used outdoors?
A: Yes, The led lights are Waterproof, but please kindly protect the controller and end connectors or battery box well if you want to use them outside because the controller and end connector or battery aren't waterproof, please kindly note it.
The snowflake curtain light come with a plug cable. The length of the plug cable is 0.7 meters. If you feel that the cable is not long enough, you can purchase an additional 3 meter extension cable.