Just read your profile and I think I ought to pop up and explain everything on a one-to-one basis!!
Seriously, I hope a pilot will respond. I do not know the answer except that navigation probably doesn't come into the equation as I know of no navigation system employing lights of that nature in an aeroplane. I wonder how many helicopters you've seen with the lights? As the lights are big it suggests they are something to do with outside, rather than inside, the helicopter.