I applied through my school's career fair, and got a phone interview the following week. I was told that person X would call and interview me. but was contacted by a different person . The interview was filled with mostly behavioral questions, and going through my resume etc. At the end there was a brain-teaser that all Lutron interviews ask. They asked me to estimate the weight of the car parked at the curb, with nothing but a 3X5 notecard. He guided me through the questions and i was able to get it right in the end. I was told I would hear back in two weeks, but never heard back even when two of my other friends heard back (no offer). I emailed the person that interviewed me and he never replied either.

Initial technical interview. The interviewers were very stern and cold. They wanted to see how you react to problems that you don't know the answers to. They had 3 or 4 scenarios/questions where they watched you work through them with a notepad in front of you.