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Air Movement to Gain Control Over Temperature, Humidity & CO2 In addition to light and carbon dioxide all plants, whether they are grown in soil or in indoor grow rooms, need a steady supply of fresh air. While this is achieved naturally in outdoor gardens, fields, farms etc., in hydroponics gardening special means have to adopted to ensure air movement for continual supply of fresh air. This is done using fans blowers and associated equipment. Water Cooled Lighting All conventional sources of light produce heat as well as light. While some lights sources like the incandescent filament lamp are quite inefficient, producing huge amounts of heat, others like the sodium vapor lamp are somewhat more efficient and run comparatively “cool”. In applications like hydroponics this heat produced in the lamp can have several deleterious effects on the plants in an indoor grow room. It is imperative in such applications that the heat generated in the lamp is dis For Hydroponics Growers The development of better health consciousness among consumers has led to a phenomenal growth in the demand for hydroponically grown produce. A combination of hydroponic technology and a controlled environment greenhouse or indoor grow rooms can tackle this demand. Such a blend is known as Soil-less/Controlled Environment Agriculture (S/CEA).