File:Spectrum of halophosphate type fluorescent bulb (f30t12 ww rs).png

Spectrum of an old style (halophosphate phosphor) fluorescent light. Blub type is a General Electric "warm white" code number "f30t12 ww rs". Spectrum taken by me using an Ocean Optics HR2000 spectrometer without fiber light guide. Broadband halophosphate emission peaks are enclosed by orange arrows. Data used to create the spectrum is on the talk page in CSV format. This spectrum is not calibrated for intensity.