Hidden levers in the utility area

[World's Cutest Buggirl]

I'm in the second area, in the utility area. I found a lever hidden behind a brick on the floor in a room, and when i pulled it the room next to it (with an obvious secret in it) lit up 1 of 3 lights. Trying to figure out where the other two might be... anyone figujre it out?

[Nexxtic]

All of them are in the same room. Keep exploring!

Here are the answers;

One is in a ventilation shaft. One behind a pillar.

[spambot9k]

I found both "hidden ones" by myself but had to search the internet for the "obvious one" :D