But seriously, isn't it 2 lights that are activated when you switch on the landing lights.
Something not right here.
On A320 there are two landing lights mounted one each side at the inner end of the lower wing. They have a switch each. It is a three posn switch, first detent for extend, second for ON.
There is also one switch for the two lights on the nose gear. First position taxi light, second position take off light.
There is lastly one switch for the two runway turn off lights.
Total two landing lights, one take off light, one taxy light, and two runway turnoff lights.