I'll admit my personal experience is limited, but I have already noticed a very strong tendency for my plants to lean towards a specific set of cfl's I have and basically seems to ignore the other set of lights, even though they are all the same wattage.
I can't say I understand the reason for this but they've shown the preference from early seedling stage when they all started leaning heavily to the side those lights were on. Unfortunately I can't tell you exactly what they are as they were already present in the house and were basically scavenged from the sockets they already inhabited.
I don't know if this is really on topic or not, but I thought I would throw the ideal out there that the plants seem to respond in a rather drastic way, to various cfl's.

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...flowering.