Are you using the 2 spectrum or tri spectrum led? Im currently using a six spectrum LED light my buddy developed thats showing me some good results so far and no stretching.

My buddy told me that the 2 and 3 spectrum lights are ok and will grow decent herb but more spectrum's of light are needed to get high quality buds comparable to mh and hps lighting and he developed a light that does this and combats all the former issues with led growing. Check out my thread.

http://boards.cannabis.com/indoor-gr...ndoor-led.html