What does tuv as approved mean?

"TuV approved" means a product has been tested and certified by TÜV (Technischer Überwachungsverein), one of several organizations in Germany and other countries that provide independent testing and certification services. TÜV certifications signify that the product meets specific safety, quality, and performance standards. The exact standards met will depend on the specific TÜV mark displayed on the product. It's a mark of trust and assurance for consumers.