No it does not. Because Sunbeam exists.
What does a loaf of bread have to do with anything?
It sounds like a dumb question but the spell's description doesn't say that it's actual daylight. Just a "sphere of light." This is of some concern if fighting a vampire.
Well huh, I wonder what wavelength the light is.
So maybe the reason light/daylight spells don't injure vampires is the lack of UV? That would make sense, because fires are generally a lot cooler than the sun so firelight wouldn't contain much UV.