you do need 6500k for a while tho you can mix and mach..one of my mates is using 5 23w cfls 2700k and 15 22w 6500k first couple of weeks depends what his growing and later 15 and 5 just changes the bulbs..theres so many different ways you can grow and mix bulbs that im geting confused miself here allready..i dont spend much time here anymore cos its way to quiet here tho other forums i saw a man growng 2 plants with blue light what doesnt give any light spectrum at all what plants need..he only got like 10 grams or something like that tho he proved the poiint...

id go 6500 for a while and then swap around to 2700 or use your 45w 2700 and just add 2-3 6500 on da sides..
whats the lumen output on these 45w bulbs anyways?