Marijuana has been cultivated for centuries by cultures throughout the world. Some cultures use marijuana in religious ceremonies, others use it to relieve to medical ailments, and some use it for recreational purposes. The first indoor marijuana grow relied on High Pressure Sodium (HPS) and Metal Halide (MH) grow lights as a sunlight replacement for plants indoors. These forms of High Intensity Discharge (HID) lights produce a full-spectrum white light, the final color of which is determined by the gasses and elements within the bulb. While these full-spectrum HID lights have worked well to grow marijuana for decades, the majority of light they create is unused (reflected) by plants. In fact as much as 70% of the light they create is never processed during photosynthesis, meaning the majority of the power they consume is simply wasted energy.