Method Seven Operator HPS Plus Grow Room Glasses The Cultivator HPS Plus provides great value and exceptional COLOR BALANCING for HPS lighting with our proprietary lenses by CARL ZEISS VISION to exacting standards. The Operator HPS Plus uses our SILVER LENS COATING, adding improved performance in outdoor lighting and indoor exposure above 10,000 watts of lighting. 100 Percent UV PROTECTION. High pressure sodium (HPS) produces a unique light spectrum that is very challenging to the human eye. INCREASE YOUR COMFORT, pleasure, and plant experience under the harsh lighting conditions common in the grow environment. High pressure sodium (HPS) produces a unique light spectrum that is very challenging to the human eye. Method Seven premium lenses are asymmetrical to ELIMINATE DISTORTION that occurs with typical value eyewear with a curved lens. SEE THE DIFFERENCE and treat yourself to QUALITY with the FIRST and BEST GROW ROOM GLASSES in the industry designed by Method Seven an OPTICS TECHNOLOGY company. Includes Microfiber Spectrum Art pouch that doubles as lens cleaning cloth.