The go-to optical tool for indoor growers using HPS lights. Method Seven, which has become the industry standard and unrivaled choice of the most successful commercial gardens, brings you the Resistance HPS PLUS. The Resistance utilizes patent-pending rendition lens technology and is the world's ultimate pair of glasses for the grower in search of "Perfect Color" in their HPS lighted grow. The Resistance Plus adds silver "plus" coating for brighter, large scale grow rooms using DE lights and rooms above 10,000 watts. The glass lens filters out infrared heat which cools the eye along with keeping it moist for long hours in the grow. Lenses are manufactured from the highest quality German mineral glass which also provides perfect clarity. CE, ANSI, and FDA certified. The only FDA medically registered grow room glasses on the market. A perfect fit for any commercial facility or hobbyist.