A CFL can be classified as "5000 K", but (correct me if I'm wrong) the gases inside the tube do NOT get anywhere near that hot. Which brings up my first question: How hot does a CFL get? Since the spectrum is not a blackbody, it's not easy to tell just by looking at the emission spectra. I was unable to find an answer online, so I'm curious if anyone knows? Second question: I took the spectra of an incandescent bulb, and found the peak to be around 660 nm. Wien's law then gives us a temperature of over 4000 K. However, the melting point of tungsten is 3400 K. Therefore, how does one resolve this discrepancy? Thanks!