Grow Lights in hydroponics gardening – High Pressure Sodium (HPS) grow light
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The urban gardener asked: Along with water, hydroponics plant nutrients, CO2 and oxygen, grow lights is the key basic component, required by plants to live. Providing additional light is necessary for indoor gardening. Furthermore, light should resemble the sunlight as much as possible. The major concern with other types of lights is that they do [...]








