Students typically take it in their fourth or fifth year.
The lamps were mounted on boards, and then the students measured the spectral power distributions of their lamps in 1 nm increments, from 380 nm to 780 nm. Next, they determined the CIE xy chromaticity coordinates, and then they found the correlated color temperature of a blackbody. This was a very good exercise to understand the electrical components necessary to power a lamp, and to comprehend how lamp color is measured and specified. Lamps were donated from Osram and Philips , ballasts came from Advance , Osram, and ESI, and sockets came from Leviton . Thanks to the manufacturers for their support, especially to Stan Brenner from Leviton, Mary Coldiron from CNO Electric, and Megan Carroll from Philips.