It's far too dark to see down here. First thing we need to do is switch the lights on.
This is the low-spoiler guide for "Switching on the lights" puzzle in Dexter Stardust: Adventures in Outer Space. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.