hi new grower, bspectral is corect, the early stages are very inportent for light, those first 2 to 3 weeks before 12/12 is cryticle, it is during this time that the plant puts on most of its growth, not enough light will make ya plants tall and lankey, and not very bushy, my babys only get a few days of soft light say 150 watts then i wack em under 600 watts for 2 weeks,and then under 1000 watts untill finshed, you can produce good cannabis under a much lower wattage but you will have to have a smaller crop, and it might take a little longer thats all, what strain are you growing mate, i have got pics of mine to show ya but i cant get them on here cos there to big and i dont know how to make them smaller, all the best