Indoorsgrowing

Understanding PAR Output You’ve probably heard about PAR. In simple terms, It’s the part of the light spectrum that your plants use for photosynthesis. So It’s a pretty big deal. The higher the PAR output of your light, the more edible light your plants receive. Take a look at the table below for the optimal ranges of PAR for each stage of your plans life: Ideally, you want to pick a grow light that outputs PAR in the ranges above. This pretty much rules out any LED grow light below 300w, as they simply don’t have enough power to generate the required levels of PAR. That said, keep in mind that these are optimal levels of PAR. Using a grow light that has less PAR output than these ranges will not be a disaster, you just won’t max out the potential of your plant. Consider The Number Of Plants You Are Growing Sea of Green (SOG) - 1 sq/ft per plant Sea of Green forces plants into the flowering stage at a very early age. In fact, after abo...

What Is A Ceramic Metal Halide Grow Light? First, let’s clear up a point of confusion. I’m sure you’ve seen (even just in this article), several different terms and abbreviations. Ceramic Metal Halide  (CMH) grow lights , Light Emitting Ceramic (LEC) and Ceramic Discharge Metal Halide (CDM) all refer to the same thing. CMH is the most common term. Another point of confusion concerns their relationship to metal halide lights.  CMH bulbs  are a variation of MH bulbs, but they are quite different. Instead of using a quartz tube, they use a ceramic tube (more here), similar to an HPS bulb. This allows a higher arc tube temperature, which in turn allows a better mix of gases to produce a more optimal spectrum (more on this below in the sections comparing CMH to MH and HPS). The light produced by a CMH bulb is much closer to natural sunlight than either MH or HPS (with a CRI of 96). It is, for practical purposes, a perfect combination of MH and HPS in a single bulb. Ad...