The best most even light is in the center 20 inches. Remember that
fluorescent lamps are not always the best single source of light. It
depends on the plant etc. Most of the time you would be better served by
using a mix of fluorescent and incandescent light.

--
Joseph E. Meehan

26 + 6 = 1 It's Irish Math


"Dr. Rev. Chuck, M.D. P.A." wrote in message
...
How much of the length of a 24" / 20 watt tube emits enough light to
produce strong initial plant growth?