sounds like a plan. I know people do it the cheap way but even if I have to spend $10-$20 bucks I think it's well worth it as opposed to a flimsy $2 duct.
One good thing is the light will not be close to the ceiling, at least I don't plan for it to be. I'm not growing giant trees. I'm either going to keep the reservoir on the floor, or 1-2 feet above the floor. Even if the plants grow to 2 or 3 feet I should still be able to keep the lights away from the 7 foot ceiling since the lower heat from CFL shouldn't burn them. I think I can keep the light less than 1 foot from the plants (if not several inches). I don't have the bulbs though so not sure. I'm going to see if I can find the thermal output from the manufacturer.
One good thing is the light will not be close to the ceiling, at least I don't plan for it to be. I'm not growing giant trees. I'm either going to keep the reservoir on the floor, or 1-2 feet above the floor. Even if the plants grow to 2 or 3 feet I should still be able to keep the lights away from the 7 foot ceiling since the lower heat from CFL shouldn't burn them. I think I can keep the light less than 1 foot from the plants (if not several inches). I don't have the bulbs though so not sure. I'm going to see if I can find the thermal output from the manufacturer.