ARC CMH Lighting System (No Lamp) spl_fluence 6' grounded cord with on/off

6' grounded cord with on/off switch

Internal RF shielding

Norwegian kelp improves nutrient uptake and increases yields

and 55 gallon drums

resulting in the clay literally falling apart when exposed to water

ARC CMH Lighting System (No Lamp) spl_fluence 6' grounded cord with on/offThe ARC CMH 315W system is a complete, low profile 315W ceramic metal halide lighting system designed for commercial growers needs. It features massive thermal heat distribution fins on the ballast compartment to allow the internal electronic components to operate at optimal temperature range, ensuring long ballast life. The replaceable reflector was specifically designed to distribute the CMH lamps PPF (Photosynthetic Photon Flux) in a rectangular,