Prime Grower Low Frequency Square Wave 630W CMH CDM Ballast
Digital Grow 630W Double Ended Ceramic Metal Halide System features a highly efficient, square wave, low-frequency ballast. Ceramic Metal Halide lamps offer a spectrum and CRI that closely resembles natural sunlight over any other form of lighting available on the market, they also have increased PAR/Watt efficiency leading to better quality while using significantly less power.
630W CMH Low Frequency Ballast Features:
It is what they say it is and it got here fast