Window tint percentages explained: 5%, 20%, and 35%

Not sure which tint shade is right for your car? Here's how 5%, 20%, and 35% actually look and perform on Atlanta roads.

Nobody picks the wrong tint on purpose. They just eyeball a demo card in a shop, say "yeah, that one," and then spend the next three years either squinting through glass that barely does anything or fielding questions from every cop on GA-400. Picking the right tint percentage matters more than most people expect — and the decision is less about personal taste than it is about light transmission, heat rejection, Georgia law, and how you actually use the car.

Window tint percentages — sometimes called tint levels, tint shades, or VLT (visible light transmission) — describe how much light the film lets through. A 5% film blocks 95% of visible light. A 50% film blocks half. The lower the number, the darker the tint. That much is simple. What gets more complicated is figuring out which percentage makes sense for your windows, your vehicle, and what the state of Georgia will tolerate before a deputy hands you a fix-it ticket.

We install window tint across all three Defyne studios — Marietta, and both Alpharetta locations — and this is probably the question we field most often at the counter. Here is an honest breakdown.

What tint percentages actually mean on your windows

The VLT number is a measure of visible light, not heat or UV. A film can let in a fair amount of light and still reject significant infrared heat — which is why ceramic window tint outperforms dyed film at the same percentage. The VLT rating tells you how dark the glass looks. The film's construction — dyed, carbon, ceramic, or nano ceramic — tells you how it performs on heat and UV, independent of shade.

Think of it like sunglasses. A cheap pair of dark lenses blocks light. A quality pair with UV-protective lenses actually protects your eyes even in a lighter shade. Same logic applies here.

Georgia law sets a floor on how dark you can go on most windows. Front side windows must allow at least 32% VLT. Rear side windows and the rear glass on non-passenger vehicles have more flexibility. Before you commit to any shade, verify the current rules — they can and do get updated. Our post on Georgia window tint laws 2026 walks through what's legal and how enforcement actually works.

35% tint: the daily driver default