We offer Spectrum King LED grow lights at affordable prices. Natural sunlight emits light at the full spectrum, which is needed by plants to grow healthy and strong. However, most LED grow lights can only emit light at very limited wavelength ranges, unable to supply plants the necessary energy to thrive. The Spectrum King LED grow lights consistently emit wavelengths in the range of 380 to 779 nm. This wide wavelength range includes those visible and invisible wavelengths, like ultraviolet and infrared. The 400+ and SK600 LED grow lights truly mimic natural sunlight while matching intensities of traditional HPS lamps with over 100,000 Lux.