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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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tCheck CBD vs THC Testing

A frequently asked question is how to test CBD and THC on the tCheck when there is no setting to choose beforehand. Below is the current status as of 2019/02/01.

Strains with a 1:1 CBD to THC ratio will not work until the latest update is sent. Most strains are either predominantly CBD or THC. For example, with 2-3% CBD and 18% THC, the device will give the THC reading because it is the dominant cannabinoid. CBN or CBG are naturally pretty low and aren’t being tested for. 

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