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Moreover, Low-E2 glass contributes to the overall comfort of indoor spaces. By reducing glare and minimizing temperature fluctuations, occupants can enjoy a more pleasant living or working environment. Natural light is a coveted element in design, and Low-E2 glass allows architects to maximize daylighting opportunities without compromising on energy performance. This balance creates bright, inviting spaces that enhance productivity and well-being.

While some natural glass does exist in nature, such as black stone and talc, the vast majority of glass is fired by humans at high temperatures. As far as we know, the origin of glass dates back to the Bronze Age of Mesopotamia. About 4,000 years ago, humans began melting silica (sand or crushed stone) and mixing it with small amounts of limestone and soda ash. According to Pliny, the invention of glass was a happy accident: the Roman historian suggested that glass was accidentally acquired by Phoenician sailors in the course of a beach picnic, but since there were no flames at the time capable of reaching temperatures high enough to melt sand, this view is questionable. Contemporary historians believe that glass may have been discovered in the process of making ceramics or working metals. These two processes require higher firing temperatures and longer firing times than baking bread or roasted leg of lamb.

According to the different application scenarios and processes, photovoltaic glass can be divided into ultra-white calendered (embossed) glass and ultra-white float glass.