This pdf file gives instructions and dimensions for building a wooden or PVC stand for a fluorescent lightbank (using fluorescent shop lights). A fluorescent lightbank is most appropriate for growing large numbers of plants. The light bank uses only 4.5 X 2.5 feet of space, which will accommodate several large classroom experiments. The lightbank consists of 6 or more 4-foot fluorescent bulbs side by side. The most common bulb used is a 40-watt Cool White Deluxe, but other 4-foot bulbs such as a 34-watt or a 40-watt Cool White are also acceptable for growing Fast Plants.