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Back To Books :
Back To George F. Van Patten
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This book is the definitive guide to HID (metal halide and high pressure sodium) lighting and gardening for the indoor grower. It simplifies complex principles in a way that both beginners and experts will appreciate. Use it to compare different specifications of horticultural HID lamps and reflectors. This book could change the way you garden as well as where and when you can garden! 168 pages.
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