Full Spectrum Light: These lamps replicate natural sunlight better than any other lighting technology on the market. Plants flourish when they receive a full range of sunlight wavelength & rays. This allows for the lamp to be used for the vegetative and flowering stages of the growth cycle. The lamps are proven to increase the quality of your plants due to their spectrum and significant UV production. Longer Life-span than traditional HID lamps: 20,000hrs+ High efficiency: Equivalent to 600w HPS/MH 90 CRI @ 3000K, 98CRI @ 4000K WARNING! We do not recommend dimming the lamp lower or higher than 315w. The Lamp will not perform as specified and could damage the lamp or ballast.