Lighting is by far the most intriguing aspect in the hydroponic industry. numerous variations, concepts and patterns exist to illuminate the paerfect perpetual garden. The world of horticultural lighting is cast and comlex and having proper lighting is one of the most important factors in keeping your garden healthy and thriving. It is because of this that hte initial investment can be a tad intimidating. Keeep in mind the efficiency is more imprtant than power meaning bigger is not always better. Consider which lights are producing the best spectrum for your plants bases on PAR (photosynthetically active radiation) watts, and NOT LUMENS. Maintain adeuate light dispersion based on foot-candles, or density of watters er square foot and your canopies will flourish. There are three different varieties of lighting that have proven to be effective in indoor cultivation. High Intensity Discharge HID lighting is the most popular choice for the average indoor gardener. Based on seed to harvest growth, it is the most effeiceient way to deliver productive lighting to plants. this type of lighting covers th most area, and delivers overal effectiveness in growth and roduction. New technolology fluorescentrs such as T-5 and compact fluorescents following next in line as competentt garen lighting.