I know about the rule of thumb for 100w per plant. However, will 2 White Widow work well under a 150w HPS? I know 1 should do great. But what do you think about 2? Say about 3 to 4 ft tall for both. Man I am just FULL of questions!
I prefer to go by lumens, but yeah 2 plants should work pretty well under 150W. And asking questions is the BEST way to learn!!! lol Good Growing and Happy Toking!
you'll be fine, but you can supplement your hps with some cfl's fairly easily and inexpensively. You could add another 50w for under 20 bucks.