Yup, that’s what I wrote: a broad hodgepodge of wavelengths, which is to say, an irregular distribution over a wide range. The distribution is inherently less intense at a given wavelength than direct LEDs, since the light gets spread out from a relatively narrow distribution of about 10-30 nm to hundreds of nm.
Some white light LEDs use better phosphors that are more efficient at converting the fundamental wavelength, but those can be pricey. With those, the fundamental is harder to pick out because it’s at the same or lower level as the rest of the wavelengths.
