hmmmm i think there is a difference if you look at the spectrum they throw out. Grows tend to have dual spectrum where they throw out red and blue (and all the rest but thats the peak)ive always thought, with fluoro tubes, theres no significant difference between the grow type and typical everyday home type. i mean i bought my tubes from bunnings. for veg i got 2 twin fixture fluoros each with a warm and cool tube. im eventually gonna trade them up for an MH light but theyre working wonders for me in veg
White (cool) tend to throw out more blue (hence the more blue-white colour)
Yellow (warm) tend to throw out more yellow.
So i guess based off that grow lights would be good for both (yet dont contain enough lumans for weed) whilst white is better for veg and yellow for flower. That said fluero in general is pretty weak lol
Thats my take on the whole situation anyway....pretty sure its true