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2. Your Grow Light Is Probably Too Far from Your Plants ... - AOL

   www.aol.com/lifestyle/grow-light-probably-too...

   Here's what you need to know to place grow lights at the right distance, depending on the type of light and the plants you're growing. Related: The 11 Best Grow Lights to Help Your Plants Thrive ...

3. 10 Essential Tips for Growing Vegetables Indoors Successfully

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   Most vegetables are full-sun plants that require at least 8 hours of direct light to grow outdoors; however, plants like tomatoes generally need 16-18 hours of bright light to fruit inside.

4. 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).

5. 6 Signs Your Houseplant Isn't Getting the Right Light (and ...

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   A small grow light placed five feet above the plant probably won't cut it. That's because the same light fixture provides far less light when placed 5 feet away (like on your ceiling) than at 2 or ...

6. Daily light integral - Wikipedia

   en.wikipedia.org/wiki/Daily_light_integral

   The daily light integral (DLI) is the number of photosynthetically active photons (photons in the PAR range) accumulated in a square meter over the course of a day. It is a function of photosynthetic light intensity and duration (day length) and is usually expressed as moles of light (mol photons) per square meter (m −2) per day (d −1), or: mol·m −2 ·d −1.

7. Controlled-environment agriculture - Wikipedia

   en.wikipedia.org/wiki/Controlled-environment...

   Controlled-environment agriculture (CEA) -- which includes indoor agriculture (IA) and vertical farming—is a technology-based approach toward food production. The aim of CEA is to provide protection from the outdoor elements and maintain optimal growing conditions throughout the development of the crop.