i dont see the point using floresents unless its for cloning or early vegging. A better alternitive for floroesents are metal halide wich has a good frequency of blue for vegging. HPS are perfect for budding cus of its reds. Both MH and HPS release a good amount of lumens and are far more efficiant than floroesnts. use floroesents for cramped areas and if you dont wanna cook your plants.