Glad to help! I've heard of graduates from Lighting going in a variety of directions. There are a bunch of RPI Architecture graduates who go on to get a graduate degree at the Lighting Research Center, and they usually go on to work in design firms where they can incorporate both their design background and their lighting experience. Others focus more on scientific development and go on to join research firms or, in some cases, industries. In terms of which area is best - I've seen really interesting things in a lot of areas! The LRC is full of experiment setups to test a variety of things, from the way that specific lighting technologies decay over time, to the impact of light on human sleep cycles, to architectural daylighting. Professors and grad students from the LRC also teach or take classes with the normal Architecture school, to integrate both daylighting and artificial lighting technology into architectural designs. I think the program seems pretty open to letting people choose what direction they want to take, as I've talked to a variety of people there who seem to be doing really different things.