You turn the first switch on, the second switch off, and turn the last switch on for a minute or so, then turn it off. Go into the room and if its on, its the first. If its off, its the second, and if its off and warm its the third![]()
I'm going to tweak this answer.
Turn the first switch on for five minutes.
Leave the second switch off.
Turn the third switch on a minute.
Make sure all switches are off.
Walk into the dark room feel the bulbs. The hot one is one. The cold one is two and the warm one is three.
