Power consumption of roof ceiling LED light and LED tube light are about the same (as per Fluke 376 meter). Since they are using the same technology, I would assume the light output is probably close between these two. I cannot compare to the original fluorescent tube since I threw away its ballast to trash. There's *NO* coming back after you tried these LED lights!
As far as color temperature goes, they all are spec'ed out to be around 3500K (warm white). They look close to me in the temperature, but If I'm trying to look *VERY* closely and carefully I can spot some small difference. Anyway, they are in "warm white" range, and I like it better that cold temperature of original fluorescent tube. But personal preferences are very subjective, of course. Unfortunately, I don't have a meter to measure their true temperature.
-albertr