Car Window Film Performance Metrics: A Complete Guide
Introduction Car window films are more than cosmetic upgrades. They influence safety, comfort, energy efficiency, and even compliance with local regulations. Yet, many consumers are overwhelmed by technical acronyms—VLT, UVR, VLR, TSER, IRR—and marketing claims that often obscure the real science. This guide breaks down the essential metrics, helping drivers make informed decisions when choosing […]