In Australia (and many other countries) there are state laws that require a minimum amount of (filtered) light must enter through glass. This is referred to as VLT or visual light transmitted. There are also restrictions where tint can be applied and no film of any type (including clear film) can be applied to the front windscreen (however the laminated windscreen provides very high UV protection properties).  The front driver/passenger windows must have a nett VLT of no less than 35%.  What this means is that when the film is applied over the factory fitted glass, the light transmitted will be at least 35%.  When the glass has been tinted, the (visual) result can vary from one vehicle to another.  This is due to a number of things – colour of the paint, colour of the interior of the vehicle and also the colour of the window film.  Whilst most coloured films measure as 35% some appear darker than others and this is created by using darker pigments during the manufacturing process.

The MotorOne Street brands Legal or our Cancer Council endorsed Dark Night are both films with a darker appearance.  These are often recommended where there is factory fitted privacy glass on the rear windows as the darker colour compliments the privacy glass.  Privacy glass is quite dark in terms of the measured VLT and may be as dark as 20 – 25%, therefore it is not legal to apply a coloured film over this area.  The best solution to achieve the maximum UV protection and improve safety, is to apply a clear film (Cancer Council UV Clear) over the privacy glass.