I don't know the name of your triggers, but if you have placed them, you can double click them and then name them. You can do the same with lights, but you need to go into the .nl2sco file, go to the "Lights" tab, and then name it there. I've made lines 10-13 variables where you can replace what's in the quote with the trigger names, the scene object name, and the light name, those are the only lines you should need to edit.
Copy the code here
http://pastebin.com/XjJZ572G and paste it into a text editor of your choice. You need to save it as "LightTrigger.nlvm", anything else won't work unless you change the class name.
I didn't test the script, but it should work. Post if it doesn't with the error :]
EDIT: Also on line 13 it's supposed to say "name of light", copy and pasting and its finest :]