Method Seven Coup HPS/Sun Transition Grow Room GlassesShift from grow room to sunlight with HPS to sun transition lenses that balance color, cut glare, and protect your vision all day. Sunglasses by day, grow glasses by light. Adjust from signature blue color balancing technology under HPS grow lights to soft grey blue in direct sunlight. Lens Technology Method Seven grow room optics are designed using notch filtering technology to precisely block specific wavelengths of light to achieve color balance