My house (built in the 1960s in New Zealand, if that matters) currently has a single bulb by the front door which I'm looking to replace with a security light. The light is controlled by a switch on the wall by the front door.
I removed the existing bulb and found that there were 2 wires connected to it: one black and one red (refer to image below).
After deciding how I was going to install the security light, I bought one. However, after reading the instructions, I found out that I need to connect 3 wires (live, earth, and neutral) to the light. A bit of Googling shows that this is needed for the IR sensor.
I was unable to find out what I should do about this though. Everything I've read about a red and black wire insists that there is also a white wire (there isn't, I've checked). Additionally, the security light mentions that the wire colours should be blue (N), green/yellow (E), and brown (L). These obviously aren't the colours of my wires so I'm not even sure where to start.
I'm hoping someone here can shed some light on how I can (or even if I can) install the 3-wired security light in the place of a 2-wired (not security) light.