£16.08

Metal Halide and High Pressure Sodium High Intensity Discharge lighting systems are designed to mimic sunlight for the growth of plants. This book explains how to use HID (High Intensity Discharge) lighting to make indoor gardening possible.This book explains how to get the most from your light system, how to choose the right light for your plants, how it all works, how to fix problems and gives specifications, with light spectrum graphs, of HID lighting systems currently being sold.Paperback. 160 pages.