Tested these at the indo expo and had to get them I have a 10x10 tent with 6 de600hps lights and with the glasses there's is not any unnatural colors, all plants are the perfect green and deficiencies are much easier to detect
Don't Grow Blind
Method Seven designs high-quality glasses and photo filters for indoor and outdoor growing environments. Our grow room glasses provide true color in bright lighting and are optimized for each of the standard grow lighting spectrums.
Perfect Color HPS+ grow room sunglasses are the go-to optical tool for indoor and outdoor growing under high pressure sodium lights. These mineral glass lenses are infused with rare earth elements to filter the grow room light spectrum and restore natural color, making it easier to spot issues like pests and nutrient deficiency. Formulated with high-quality German glass, Perfect Color HPS+ lenses are scratch-resistant, easy to clean, and don’t haze over like cheap plastic lenses. They also block ultraviolet light and infrared heat, keeping eyes cool and moist under bright grow room lights. The silver "plus" coating attenuates the effects of large scale grows above 10,000 watts and double-ended HPS lighting fixtures. These lenses use notch filtering technology to balance color and allow use with cell phones or other screens.
Made in Italy, this fashion-forward frame features concealed flex hinges for a custom fit that doesn't skimp on style. The Evolution is comfortable and flexible as it's made with TR90: an incredibly durable and lightweight thermoplastic material. Produced with Swiss technology, TR90 allows the Evolution to bend under pressure and contour your face.