| That's a pretty wide table. I used a shelf that is 48" long by 18" wide, with four 4' long tubes. T8's are OK, T5's are better but cost more. Assuming this is a short term setup for starting seeds, get whatever bulbs are cheapest, it's not going to matter much, cool white, or a mix of cool and warm white, or daylight. For your table, you really need at least six 4' long tubes so that you have light directly above the entire area, and that still doesn't deal with the ends of your table, since it is six feet long. You could use 2' fixtures there, but they are not quite as efficient as the 4' long ones. Keep the seedlings within about 2" of the bulbs by propping them up on whatever is handy (boxes, wood, milk crates, old phone books, etc.) Depending on the size of the plants you want to grow, this setup should be good for 6 to 8 weeks of growth, after that they will need more light. |