kind princess,why did you end up preferring 24 over 18/6 was it you wanted the bushier plant.i mean if 18/6 is almost the same the saveings in power is worth it no?if you have to veg an extra 5 days it lessen your power bill over an extended period.you end up useing the same but its drawn out bringing less heat.ive read that 18/6 is only off by two days in vegging compared to 24.but i dont know a hell of alot that why im trying to get input.you would think this would be a huge topic.but thanks all.