Gardening Indoors with HID Lights

Six chapters in 168 pages cover light and it's relationship to plants, including, photosynthesis, phototropism and light intensity. This book explains in detail the differences between sunlight and artificial light. Advantages of mercury vapor, metal halide and high pressure sodium lamps are detailed. A light bulb chart is included and explained in detail. Choosing, using and all details of HID lights in book.