hmmm, let me answer my own question...maybe? I found it has 5000k. So, it must be the similar to the cool bulbs.
~tom

if you wanted a CFL you could get a 125w. it has a CRI of 93 and i think 10,500 lumens full spectrum. i got one a year ago but the regular tubes work better for starting seeds because this will only cover about a 2'x2' area to start seeds i had a 2'x3' area of seeds starting with it and the outside ones stretched inward. this light would work better past the seedling stage.

Here is a link that might be useful: 125 W CFL light

nice link. nice price. nice info you gave me.
Thank you.
~tom

I use 6500k bright daylight bulbs from Home Depot. I grow daylily seedlings using these for 4 1/2 months in the winter and they do really good.

Here is a link that might be useful: Our Garden and Seedling Website (updated)