Hey guys how you all doing today? Well i just moved into a new place where it is very, VERY hard to get any good smoke so im finally growing some of my own! ha well the dimensions of my grow box are 35cm X 35cm X 70cm (L/W/H). Im going to be growing in soil and have found the perfect pot which is 17cm high, which leaves me with 53cm of vertical growing space. So anyways, heres my problem. I cant decide between a 65w CFL or a 70w HPS. If i was going to use the HPS id set it up in a cool reflector hood thing with it drawing air from the box then exhausted straight out, as means to vent the whole box. Only thing is, im wondering if this is overkill? i want to be able to use every inch of height i can without burning the plants and im not sure how close i could get them to the light before they burn up. totally over typed this but i thought id lay it all out for you guys, incase you had any other advise you could help me with. thanks.