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IndoorVegan

CMH - Ceramic Metal Halide

A somewhat newer development, CMH lights seem to be a new wave for indoor gardeners. Many growers are exploring CMH lighting out due to them having a more complete spectrum from one single bulb, as opposed to switching out MH and HPS bulbs during your grow cycle. CMH however do fall a little short during the fruiting/flowering cycle when compared with the tried and true HPS.

Some of the best benefits of CMH fixtures include:

  • Native UV spectrum output
  • Increased PAR efficiency compared to standard HID bulbs
  • They don't put out a noticeable orange or purple light, so you can view your plants more naturally
  • Watt per watt, they have a lower heat output than standard HID fixtures
  • They last much longer than standard HID lights, saving you money on bulb replacement