Probably a dumb question but I want to make sure this bulb is OK before I purchase it. They cost $9.99 apiece at Lowe's. I guess it's not a CFL because it's not exactly "compact". But at 65 watts, two of these will be more than sufficient to grow a single plant in the veg stage, right? I pulled the bulb out of the box and at the base it says 6500K which would be "Daylight". I didn't buy them yet because I wanted to check with the pro's on GC first. Thanks in advance!