I'm confronted with the following:
I can get all the lights on apart from one, which I can't get to light at all. Am I even trying to do the right thing?
What I've done so far:
I've watered the tree in the main world, I've started and connected all the machinery next to this box, I've started the machinery at the other end too. I haven't worked out how to extinguish the red beam in this world.