Instructions / Info Sheets   Articles   Web Links   Glossary of Terms   Frequently Asked Questions Articles New Greenhouse Lighting Technology: Electronic Ballasts by Garth Carr, PARsource National Sales Manager New Greenhouse Photoperiod Lighting System for Prevention of Seedling Dormancy by Richard W. Tinus, Principal plant physiologist, USDA Forest Service Photoperiod Extension With Two Types of Light Sources: Effects on Growth and Development of Conifer Species by Steven K. Omi, Forester Kent L. Eggleston, Horticulturist Converting Between Different Light Energy Units by Lester Harbin Fluorescent Lights for Plant Growth by Wayne Vandre, Horticulture Specialist Gardening in the Great Indoors An article about indoor lighting by Gil Schoenstein Sodium or Metal Halide? An article about sodium and metal halide lighting by Peter Wardenburg Growing Under Lights in Montreal An article about growing under lights by Gordon Creaser A Review Of Factors Affecting Plant Growth Marianne Ames, Graduate Fellow and Wayne S. Johnson, Assistant Professor University of Nevada, Reno The House that Jack Built How on grower uses efficient lighting to increase profits by Michael Cristial A Niche of His Own By Kelly Carroll