Wasn't planning on it,I'm just going to switch to HPS when they go into flower.
So...all my seeds are above soil now and no stretching or burning.The light is 4 feet above soil ,one fan is sucking airout of the ballst (to cool it)and blowing directly on the light.Then the osolating fan goes back and forth across the top of the soil.they all look like these...same hieght about,some are shorter.