Hi
I have something similar to this
https://www.ebay.co.uk/itm/10W-LED-AC-Driverless-120-PIR-Motion-Sensor-Floodlight-Slim-IP65-Outdoor-/151628868956
It has 3 wires on it (live, return and earth). But my cable I wish to join it yo only has 2 wires.
Is there a problem not using the earth wire?