Various application scenarios: 16.4ft cable can meet your installation and use requirements to the greatest,it can be used indoors and outdoors(Lights can be installed in dark places and solar panels can be installed elsewhere for direct sunlight) Auto On/Off and Remote Control: The solar security lights built-in photoelectric sensor chip, automatic lighting at evening, turn off the lighting at morning.with the remote control, you can easily choose different modes to meet your different needs.