Color change according to Sunlight, On sunny days, Sunice films reacts to the sunlight intensity and become darker to reduce sun heat and glare. On cloudy, rainy days and at night, it remains lighter and maximizing available daylight. High UV and IR rejection.Automatic adjustment of visible light comfort level. Functions: Thermal insulation, heat preservation, energy saving, explosion proof, UV isolation, IR reflection, privacy and security protection, etc. Dear, if there is anything you are not satisfied with our products, our customer service or something else, please feel free to let us know and we would do our best to resolve it for you as soon as we could. We honestly would like you give us a chance to resolve the problem before you leave any unhappy feedback. Also, if you are satisfied with our items and our customer service, please kindly give us. That would be the best honor for us.