Quote Originally Posted by darbolah
Ok so iv worked out i want to veg with red and flower with blue.
You've got it backwards.
How do i find out what cfl/fluros give out what spectrum, is it possibly 6200-6400k (kelvin) is blue and 2400-2800k is red or is it that cool and warm bulbs are blue and daylight are more to the red end.

Can someone please correct me as in Australia fluro/cfl lights either have kelvin or cool/warm/day never both so im a little confused. If someone could just tell me what sort of bulbs i need for flower/veg and how to distinguish between red and blue that would be great.

Thankyou in advanced
Daylight = Bluer light = Best for veg = 5500k plus.
Cool white = blueish white = good for veg = 3500-5500k.
Warm white = redish white = best for flower = 2500-3500k.
psteve Reviewed by psteve on . Light spectrum ?? Can anyone help :) Ok so iv worked out i want to veg with red and flower with blue. How do i find out what cfl/fluros give out what spectrum, is it possibly 6200-6400k (kelvin) is blue and 2400-2800k is red or is it that cool and warm bulbs are blue and daylight are more to the red end. Can someone please correct me as in Australia fluro/cfl lights either have kelvin or cool/warm/day never both so im a little confused. If someone could just tell me what sort of bulbs i need for flower/veg and how to Rating: 5