Method Seven Perfect Color HPS lenses are the best grow room glasses, hands down. Made from German mineral glass, these scratch-resistant grow glasses are optimized for professionals seeking the highest level of performance—and the best yield—under the intense yellow spectrum of High Pressure Sodium lights. Our synthetic HPS grow glasses are manufactured by Carl Zeiss using Method Seven's unique notch filtering technology, establishing excellent color balance free of the haze and distortion found in cheap sunglasses. These lightweight and durable grow light glasses are a great value for outfitting larger crews. The HPS+ silver coating option is ideal for extra-bright, high wattage environments and crossover use outside. All of our HPS grow room sunglasses offer 100% UV protection.