Hi nick8, i started with CFL..small ones(lots of) then the Giant CFL(200w) Dual - Great light,and still using..anyways the 2700K(Warm White) is for Flowering, though some and i agree use a mixed spectrum for Vegging 3:1 like Hugo Phurst said above also the amount of REAL Watt is very important(again like hugo said) i'm waffling!! the 2700k are easy to pick up - ASDA/MORRISONS..etc £3.15 - £3.75 per 30-35w(real) and about 2000Lumens each,so you would need at least 3..you can grow with either 2700k or 5600k for Veg but the 2700k wont be as good as 5600k and will cause alot of stretch.
This is way i got my 5600k(kinda hard to track down in Supermarkets...SOoo) -
2 x CFL Grow Light 1 each 2700k Red & 6400k Blue Spectrum 35w 45w 75w E27 B22 UK
eBay item number:
321202847190
modelwholesaleuk
2x 35w - 1 of each 2700k and 5600k = £9.45 + £2.95pnp
I think you need at least 5000 Lumen per plant
Nearly forgot to ask..what size Grow space you got? have you used Mylar or painted Flat White? all helps with getting most light to your Girls
Peace...
If i can be of any help just ask