The bulbs that come with these fixtures are the GE 9325K. There was
some talk about them on the APD last month. IMO they are among the
best for plants, not very good as far as CRI goes but I have balanced
that out using some different bulbs. In my low light tank they have
brought out the colors in the red plants like no other bulb has done
for me in the past.

I recommend you keep the bulbs or sell them to me

Giancarlo Podio