Method Seven Resistance HPS Plus Grow Room Glasses The Resistance HPS Plus is the WORLD'S ULTIMATE PAIR OF GLASSES for the Indoor Grower. Seeing is Believing. Provides exceptional COLOR BALANCING for HPS lighting with our proprietary lenses. The patent pending Rendition Technology was developed so people who work under the harsh conditions of High Pressure Sodium Lighting (HPS) can protect their eyes and see the FULL RANGE OF NATURAL COLORS. Lenses are manufactured from the HIGHEST QUALITY GERMAN MINERAL GLASS which also provides that highest level of clarity available. The Rendition Plus uses our + SILVER LENS COATING, adding improved performance in outdoor and indoor lighting exposure above 10,000 watts of lighting. 100% UV protection including protection from UV-C lighting where normal glasses fail. Method Seven offers the only Grow Lens with INFRARED HEAT PROTECTION. These also work great outdoors as a soothing blue tinted sunglass. Includes Microfiber Spectrum Art pouch that doubles as lens cleaning cloth and a hard carry case.