Day Light legend usually means CRI < 80 and then this tube has halophosphate coating.

Thank you.

Go back to first principles and build yourself a spectroscope, then you can use it on many lamps, not just this one.
Halophosphors give a full "continuum" with mercury lines supimposed on top, TriPhosphors give a very broken spectrum, full of bands and lines.

FromSalina, made in April 2015, so very recent.

I'll have to do that a little later when I have a suitable housing.

I thought I'd mention that I spotted the Daylight DELUXE version of this at a Wendy's earlier today. Etch said F32T8/DX.

The case for these says "Daylght Deluxe"

The date code is April 2015.