After many years supplying reliable coil and electronic ballasts to the world market Accent Hydroponics is proud to announce the most revolutionary advancements in electronic ballast technology, the low frequency 315W CMH Flexstar. The Flexstar 315W & 630W model can save you power in the garden with longer lamp life and superior colour index. Ceramic Metal Halide technology can produce greater yields per watt compared to standard HPS and Metal halide if used in the correct way. 315W is a lower wattage than most lights and growing practice should be considered, screen growing techniques will ensure CMH to out yield other lighting. Larger plants don�t perform as well with lower wattage due to lower growth not maturing fully.