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How much light do I need?

The previous post offered an introduction to PAR and PPFD. The question is how much is enough light and when is it too much. Supplying your plant canopy with an even and adequate amount of usable light is vital, but supplying your plants with more than they need can be a waste of energy and money. This can also lead to negative impacts on your plants.

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Why so many LED grow lights are red and blue

Blue and red spectrum LEDs are the foundation of most LED grow lights and the resultant hue is sometimes referred to as blurple. There are good reasons why red and blue spectrum LEDs are the foundation of most LED grow lights and this post is the first in a series aiming to better understand the science behind LED grow lights.

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