ZLC09DSEN is an outdoor light with a built in PIR is a way of ensuring that your home is illuminated at the right time. No More darkness in the path, no need to find a switch to check your doors. A smarter way to provide light to your entrance. Industrial and domestic Use. It will welcome visitors and enlighten their way or can be used to enlighten pathways, gates or other areas where there is dark. Sensor lights only illuminate when they detect motion within the sensor range so save energy in the process.