Green4life is right. 18/6 will give you better results because the plant is meant to be grown outside, and naturally it would get a dark cycle.

Although, saying that, i put mine lights on 24/0 for the first week, then as the first set of 5 fingered leaves come out i stick it on 18/6.

To answer your Q plants will grow quicker, and therefore, 18/6 is beats 24/0 for most cases.
LIP Reviewed by LIP on . 18/6 Vrs. 24/0 Whatâ??s up everyone Iâ??m new to growing, I never grew anything before, and im going to take a swing at it, I did my research on the forums and watched a few grow movies heres where im at so far Flood and drain system Rockwool cubes 4, 40 inch Cool and warm white fluros 6 inches from the plants GH nutrients ½ strength Ph 5.9 No ppm meter Rating: 5