Frequently Asked Questions

Which is better for night driving: 5% or 20% VLT?

The 20% VLT is clearly better for night driving, and it’s not even close. At 5% VLT, only 5% of light passes through, which means you’re essentially looking through a dark filter that makes it hard to spot pedestrians, curbs, or other cars in unlit areas. The 20% film lets in four times more light, which I found makes a huge difference when checking mirrors or reversing at night. If you drive after dark regularly, I’d strongly recommend the 20% over the 5%.

Is the 20% VLT film worth the extra cost over the 5%?

Yes, absolutely — but not for the reasons you might think. Both films cost the same per square foot at around check current price on Amazon to check current price on Amazon per square foot, so the price difference comes down to roll size, not quality. The 20% film uses upgraded 1 mil dyed PET construction versus the 1Ply material on the 5%, which makes it more durable and gives better optical clarity. You’re getting a thicker, more reliable film that also happens to be safer for nighttime driving.

Will 20% VLT still give me good privacy during the day?

Yes, 20% VLT still looks very dark from the outside. During daylight hours, you can barely see into a car with 20% film — it’s only when the sun is directly hitting the window that you might catch a glimpse of silhouettes. The 5% is more private for sure, but the 20% still offers excellent daytime privacy while being far more practical at night. For most people, 20% is the sweet spot between privacy and visibility.

Can I use 5% VLT on my front side windows legally?

I can’t give legal advice, but I can tell you that many states have restrictions on front window tint darkness, and 5% VLT is often below the legal limit. The 20% VLT is also dark, but it’s more likely to fall within legal limits in more states. Before buying either, I’d recommend checking your local tint laws — and remember that both films block 99% of UV rays, so you’re getting protection regardless of which you choose.

Which film is easier to install for a DIY project?

The 20% film is easier to work with because the upgraded 1 mil PET construction is more rigid and less prone to creasing or tearing during installation. The 5% film’s thinner 1Ply material is more flexible but also easier to accidentally wrinkle or stretch while you’re squeegeeing it down. Both use wet/dry installation methods and have heat shrink ability, so the process is the same — the 20% just handles the process a bit better.

Does the darker 5% film block more heat than the 20%?

Not really — both films are designed to block 99% of UV rays and reduce heat buildup, and the VLT percentage doesn’t significantly change the heat rejection. The 5% might feel slightly cooler because it blocks more visible light, but the difference is minimal in practice. If heat reduction is your main goal, either film will help, but you’d need a ceramic or metallic film for truly superior heat rejection.