Imitate The Solar Spectrum: Actualize a more ideal full life cycle full spectrum supplementary light program, covering the entire visible spectrum of 400nm to 780nm, suitable for every cycle of plant growth, effectively promotes plant growth, and improves crop yield and quality. Providing 4000K daylight, Ra is close to 100, infinitely close to natural light. The Secondary Optical Design: PPF: 158 μmol/s, PPFD: 577.54 μmol/s/㎡ at 1 ft. Through the lens for secondary scientific light distribution, improves light utilization, giving plants more supplementary light. Using only 100-Watt of power, equivalent to 1000-Watt incandescent bulbs. Color: Black. Material: Aluminum.