Method Seven Clip-On Classic Blurple LED Grow Room GlassesClip on crystal clear vision in blurple LED grow rooms with Zeiss lenses that balance color and block harmful UV rays. Attaches to your prescription glasses, best for smaller lens shapes. Classic polymer lenses color balance grow rooms with blurple (blue + purple) or magenta spectrum LED lighting. Lens Technology Blurple LED Lens Technology Designed for magenta or Blue+Purple, "blurple", LED spectrum grow lights. This one of a kind lens provides