ARC CMH Lighting System (No Lamp) spl_hgc Creates a dense & fibrous

Creates a dense & fibrous root structure

Maximum air cooling with built-in flanges

These reflectors are solidly built

It fits on either the ONA Gel Pail or ONA Gel Jar (both of which are 4 liters/1 gal)

Excellent maintenance of PAR/PPF over long lamp life means great value and far longer re-lamping intervals

ARC CMH Lighting System (No Lamp) spl_hgc Creates a dense & fibrousThe 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,