first time thread on my first grow i am using cfl flourescent tubes 2 40 watt warm white heat emission bulbs and 2 40 watt cool white. i heard on a web site that warm white bulbs are good for making buds dense and and cool white is making the bud stretch. i will post pictures shortly. also one of my lights took a shit on me so time to go to wall-mart and get my ten dollar light fixtures.