Sup 619OG? I tried PMing you too and it wouldnt let me. Anyways, thanks for writing me. I think you will have good results with the box specifications that you mentioned. Just make sure that you have ample ventilation. The only problem I had in my grow box, was the vertical height, my plants grew too close to the light, and at one time was only 2 inches away from the LED. So if you can foresee this problem and adapt, you should be great! I would recommend doing a SCROG like I did. You can yield almost 4 ounces off that! My growbox I only had a 3" height, so if your at 4" your golden! Do a SCROG in a 5 gallon pot and set that SCROG screen 12-13 inches above the pot. Then you should be good to go! Make sure to post a journal so I can watch it and help you out!