[Quiz sort of] The 3 Lightbulbs

So Natsubot's topic reminded me of this bad boy. The first to answer it correctly will receive 5000 DP.

You are in a room that only has one exit, and 3 switches on the wall. In a room above you are located 3 Lightbulbs. All 3 of them are linked to the 3 switches below, each one to a different one.

Question: How are you going to find out which switch is linked to which Lightbulb IF when you exit the 3 switches room, you can not enter it anymore?

Isnt it kinda stupid to give out DP for things I can look up the answer for?

Like. I just did it. http://mkcohen.com/saturday-puzzle-23-lighten-up

It's just the fastest and easiest way to get the DP. Pulls the fun out of actually trying for a riddle.

Lel Kandy ya cheater

OK Bot DP awarded :D

I'll suggest u create the puzzles. Therefore no one can look it up. I can supply u with 'em if ur interested