bare

  1. T.C. Bosby

    CMH: Bare Bulb or Air Cooled?

    I finally pulled the trigger and bought my grow light. Decided to go with a CMH. The unit I got has a vertical bulb in a reflector, but with no glass cover. https://blueearthsustainable.com/grow-light-kits/phantom-cmh-reflector-ballast-and-bulb-kit-4200k-phr31504kt So here is my question. In a...
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