Quote Originally Posted by Garden Knowm
MORE PENETRATION TALK...

Go outside and look at a dense bush.. you will see that not even the almighty SUN can penetrate more than 1 inch of dense foliage...

Keep the lights close.. and the plants short... unless.. of course.. you are using side lighting or ifyou are growing only 1 -3 plants under 1000 WATT HPS..
there are exceptions to everything..
4 plants under a 1000 watter for me