Although it's my first grow and I don't know any better, I'm digging my T5's. My veg/clone space is a 1'x2' chamber. I started with a single bulb for germinating and early vegging and have moved a few plants to my Viparspectra, dimmable, 350 watt LED. As far as I'm concerned it's a great indoor setup. The t5's haven't required more than a Hurricane fan for exhaust and two muffin fans for circulation.
Two of the pictures I'm showing are of three plants that have been crazy defoliated during their six weeks of life so there are four main colas on each. More than once I've had the lights otherwise too close so the leaves will grow and touch the bulbs without consequence. One picture is of an 8 week old plant that spent 3 weeks under HID before being gifted to me, put under t5's for four weeks, then put under the LED. This one, too, has been trained and trimmed and manifolded for (currently) 7 main colas. The picture is three days old.
