ARC CMH Lighting System w/Lamp (4200K) Promote VCBC5RK: includes: (4) 5 gallon

VCBC5RK: includes: (4) 5 gallon bio-cartridges

larger and harder flowers and improved overall quality for all the plants in their gardens

temperature variations that come with cold mornings

Outside Diameter: 5

providing a base to keep the meter upright for hands-free measurements

ARC CMH Lighting System w/Lamp (4200K) Promote VCBC5RK: includes: (4) 5 gallonThe 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,