Backrooms: Escape from Lily Lovebraids

You are locked in the Backrooms of an old factory: pink corridors, dead lamps and workshops with no obvious way out. The power is down, and while it is down there is no leaving. Go lamp to lamp and switch them on. The point is not to walk the whole map — it is to have every lamp lit AT THE SAME TIME. Because Lily Lovebraids walks these halls and switches them back off. She hums to herself while she patrols — that is your only warning. When the humming stops, she has heard you. Get caught and the run is over. Listen for the relays in the dark: every lamp that goes out is audible from the direction it was killed. An on-screen arrow leads you to the nearest dark one — along the corridors, not through the walls. Three levels: from a third of the factory with one Lily, to nearly every light and two of them hunting the lamps down. Can you light up the Backrooms?