Lights....

Every aircraft has lights. But what are the correct rules of using them. At what place do you switch on the strobe and the nav lights, when do you switch off the landinglights and so on....
I just put them on in the sim and turn them off at any given time (or not) but how is it supposed to be done?
Crash
I just put them on in the sim and turn them off at any given time (or not) but how is it supposed to be done?
Crash
