Because of the large investment, costs and benefits
must be carefully considered before plant lighting is
installed. Research should be carefully reviewed to
determine the level of light needed and the expected
growth benefits. A comparison of systems using
the format in Table 3 of Appendix IX developed
by Bickford and Dunn (1972) should be done.
Information for completing the chart is available
from county extension agents, lamp manufacturers
and suppliers, and electrical system installers.