Window film with a very low visible light transmittance (VLT) percentage, typically around 5% or less, is often referred to by a specific term. This level of darkness significantly reduces the amount of light entering a vehicle. For example, if a film has a 5% VLT, it allows only 5% of the external light to pass through the window.
The appeal of extremely dark window film lies in its capacity to enhance privacy, reduce glare, and contribute to heat reduction within the vehicle’s interior. Historically, its use has been associated with luxury vehicles seeking a high degree of passenger seclusion. Regulations regarding window tint darkness vary significantly by jurisdiction, influencing its legality and prevalence.
