Thanks for the links and I have been doing a little studying, that is my question when I purchase a light bulb it tells me on the package how many watts, lumen and color temp. So if the package says the bulb puts out 3200 lumen is that 3200 lumen per square foot or meter for you metric types.
catdaddy Reviewed by catdaddy on . Another CFL Question I am using a 2'x4'x5' grow tent I have two 6500k, 3800L, 300W equivalent. I also have put a 2700k, 2800L, 150W equivalent in between the 2 blue spec lights. I built the light myself with the 3 bulbs wired in a row with indoor outdoor type fixtures. Is this enough for four plants to veg and when I start to flower will the three 150W, 2800L be enough. I have a tendency to over think the obvious so when I choose a bulb and figure lumen how do you figure what you need. For instance it says 6500K, Rating: 5