Move the beacon light

Here is the .cfg for it light.1 = 1, 1.600, 0.000, -4.500,
I need to move it forward so that it matches the actual beacon on the A/C. Which one do I modify to accomplish this? :-?
I need to move it forward so that it matches the actual beacon on the A/C. Which one do I modify to accomplish this? :-?