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  2. Growroom - Wikipedia

    en.wikipedia.org/wiki/Growroom

    The three most common varieties of artificial lighting for indoor growing are high-intensity discharge lamps (the most prevalent for this application being: sodium-vapor lamps for flowering and metal halide lamps for growing), compact fluorescent lamps, and traditional fluorescent lamps. Full spectrum indoor LED grow lights are becoming more ...

  3. Grow light - Wikipedia

    en.wikipedia.org/wiki/Grow_light

    Ficus plant grown under a white LED grow light. A grow light is an electric light that can help plants grow. Grow lights either attempt to provide a light spectrum similar to that of the sun, or to provide a spectrum that is more tailored to the needs of the plants being cultivated (typically a varying combination of red and blue light, which generally appears pink to purple to the human eye).

  4. Cannabis cultivation - Wikipedia

    en.wikipedia.org/wiki/Cannabis_cultivation

    There are several different plant grow lights available. Currently the best source of light for cannabis remains to be metal halide or ceramic metal halide in the range of 3-4000k. Cannabis plants also require both dark and light photoperiods, so the lights need a timer to switch them on and off at set intervals. The optimum photoperiod depends ...

  5. Cannabis in Massachusetts - Wikipedia

    en.wikipedia.org/wiki/Cannabis_in_Massachusetts

    Gettman's study, Marijuana Production in the United States, shows that Massachusetts ranks 44th marijuana cultivation by state, producing 12,700 lbs. of marijuana worth $20 million, though this statistic was realized prior to the legalization of recreational marijuana and the large-scale commercial grow operations that supply the substantial ...

  6. Talk:Grow light - Wikipedia

    en.wikipedia.org/wiki/Talk:Grow_light

    LED grow lights are now being produced which exceed 1200 watts." In talking about 1, 3 or 5 watt LED grow lights, you mean individual LEDs. In talking about 1200 watt LED grow lights, you mean arrays of many LEDs.

  7. Refugium (fishkeeping) - Wikipedia

    en.wikipedia.org/wiki/Refugium_(fishkeeping)

    In fishkeeping, a refugium is an appendage to a marine, brackish, or freshwater fish tank that shares the same water supply. It is a separate sump , connected to the main show tank. [ 1 ] It is a " refugium " in the sense that it permits organisms to be maintained that would not survive in the main system, whether food animals, anaerobic ...

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