iPower 400W 600W 1000W Super HPS Grow Light BulbFeatures: 1,Produces light by an electric arc through the sodium mixture within the filament2,The sodium light with its superior long-wavelength light and lumen-per-watt performance is best suited for plants in the flowering stage 3,Red & orange spectrum and high PAR made specially for optimizing flower growth
iPower 400W 600W 1000W Super MH Grow Light BulbFeatures: 1,Produces light by an electric arc through the vaporized mercury and metal halides, a mix of metals and halogens2,The filament generates a wider spectrum of wavelengths of light, produces more short-wavelength light and has strong light penetration 3,Blue & violet spectrum and high PAR made specially for optimizing vegetative growth
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