I think that you might be disappointed with the 5000K bulbs.
For most plant growing, you would want a "full spectrum" or "daylight" bulb.
Since you seem only interested in micro green production, those bulbs might be OK.
Generally, the blue end of the spectrum is OK for vegative growth (leaves).
For fruiting/flowering, you need more of the red spectrum.
Fair enough. I do love their low price, apparent extreme longevity and low energy output... on paper they are very very interesting, even considering the 5000k!