Window tint darkness is measured in VLT (Visible Light Transmission) — the lower the number, the darker the tint. 70% is nearly clear, 35% is moderately tinted, 20% is dark, and 5% is “limo” black. In Florida, sedans must stay at 28%+ on front sides while SUVs and trucks can go darker on the rear. We’ve installed every darkness level across our Orlando, Tampa, and Clearwater shops, and here’s how to pick the right one.
What Is VLT (Visible Light Transmission)?
VLT — Visible Light Transmission — is the percentage of visible light that passes through your window tint. It’s the standard measurement for how dark a tint is.
The key thing to understand: the lower the VLT number, the darker the tint.
- 70% VLT — 70% of light passes through; nearly clear
- 35% VLT — 35% passes through; moderately dark
- 20% VLT — 20% passes through; dark
- 5% VLT — only 5% passes through; “limo” black
VLT Is About Darkness, Not Performance
A common misconception is that darker tint means better heat and UV protection. It doesn’t. VLT only measures visible darkness. Heat rejection and UV blocking depend on the film’s material (ceramic, carbon, dyed), not its darkness.
A clear 70% VLT ceramic film blocks the same 99% UV and similar infrared heat as a 5% ceramic film. The darkness is purely about appearance, privacy, and glare — not protection. This is why we often recommend ceramic film at a moderate VLT: you get full protection without going darker than you want (or than the law allows). See our ceramic window tint guide for more on how material drives performance.
Factory Glass Already Has Some VLT
Most cars come with factory glass that’s around 70–80% VLT (slightly tinted from the factory). When you add film, the final VLT is the combination of the glass and the film. A “20% film” on factory glass produces a slightly darker net result. Quality shops measure net VLT to stay compliant with the law.
Tint Darkness Levels Breakdown
Here’s how each common darkness level looks, performs, and who it’s for.
70% VLT — Nearly Clear
- Appearance: Looks almost untinted
- Privacy: None
- Glare reduction: Mild
- Best for: Windshields (clear ceramic), drivers who want UV and heat protection with no visible tint
- Florida legal: Yes, everywhere
This is the most popular windshield option — clear ceramic film that blocks heat and UV without darkening the glass.
50% VLT — Light Tint
- Appearance: Subtle, slightly darker than factory
- Privacy: Minimal
- Glare reduction: Moderate
- Best for: Drivers who want light glare and heat reduction while keeping a near-clear look
- Florida legal: Yes on front sides (above the 28% minimum)
35% VLT — Moderate Tint
- Appearance: Noticeably tinted but you can still see inside in daylight
- Privacy: Moderate
- Glare reduction: Good
- Best for: The most popular all-around choice; clean look, good privacy, fully legal on front sides
- Florida legal: Yes on front sides (above 28% minimum)
35% is our most-recommended front-side darkness for most drivers — it’s legal, looks great, and balances privacy with safe nighttime visibility.
20% VLT — Dark
- Appearance: Dark; hard to see inside during the day
- Privacy: Strong
- Glare reduction: Very good
- Best for: Rear windows, privacy-focused drivers; popular on SUVs and trucks
- Florida legal: Yes on rear sides/rear windshield for sedans (15% minimum); any vehicle’s rears
15% VLT — Very Dark
- Appearance: Very dark; minimal visibility inside
- Privacy: Very strong
- Glare reduction: Excellent
- Best for: Rear windows, maximum privacy
- Florida legal: Yes on rear sides/rear windshield (sedan minimum); SUV/truck rears
5% VLT — “Limo” Black
- Appearance: Nearly opaque from outside; can’t see inside
- Privacy: Maximum
- Glare reduction: Maximum
- Best for: SUV/truck rear windows, cargo privacy, limo-style looks
- Florida legal: Only on SUV/truck rear windows (no rear limit for multi-purpose vehicles); NOT legal on any front side window
How Each Level Looks
Choosing darkness from a chart is hard — it really helps to see it in person. Here’s how the levels translate to real-world appearance:
- 70%: You’d barely know it’s tinted. Looks like clean factory glass.
- 50%: A light, cool tone. Subtle privacy in bright sun, near-clear at night.
- 35%: The “just right” look for most drivers. Clearly tinted, sleek, still see inside in daylight.
- 20%: Distinctly dark. Privacy during the day; you can make out shapes inside up close.
- 15%: Very dark. Hard to see inside even up close in daylight.
- 5%: Blacked out. Can’t see inside at all. Limo look.
We always recommend coming in to see samples on actual glass before committing. The same VLT can look slightly different depending on the film type and your vehicle’s factory glass. We keep sample swatches at all three shops so you can compare 35% vs. 20% vs. 5% side by side before we cut anything.
Florida Legal Limits by Window
This is where darkness choice meets the law. Florida Statute 316.2953 sets VLT minimums that vary by window position and vehicle type. Here’s the summary:
Sedans and Coupes
| Window | Minimum VLT (Legal) |
| Windshield | Non-reflective above AS-1 line only |
| Front side windows | 28% |
| Rear side windows | 15% |
| Rear windshield | 15% |
SUVs, Trucks, and Vans (Multi-Purpose Vehicles)
| Window | Minimum VLT (Legal) |
| Windshield | Non-reflective above AS-1 line only |
| Front side windows | 28% |
| Rear side windows |
No limit (any darkness)
|
| Rear windshield |
No limit (any darkness)
|
The big takeaway: front side windows must be 28% or lighter on every vehicle, but SUVs and trucks can go as dark as 5% on everything behind the driver. This is why you’ll see blacked-out SUV rears but never a legal 5% on a sedan’s front windows.
For the complete legal picture — including medical exemptions, reflectivity rules, and what happens if you’re pulled over — see our Florida window tinting laws guide.
Which Darkness Level Is Right for You?
Here’s how we help customers choose during the consultation.
If You Want a Clean, Legal, All-Around Look
35% front / 20% rear is the most popular configuration we install. It’s fully legal on sedans, looks sleek, provides good privacy and heat reduction, and keeps safe nighttime visibility on the front windows.
If You Want Maximum Privacy (SUV/Truck)
35% front / 5% rear. Legal front-side tint with fully blacked-out rears — only possible on multi-purpose vehicles. Popular with families, contractors, and anyone wanting cargo or rear-cabin privacy.
If You Want Subtle Heat/UV Protection Without a Dark Look
50% or 70% all around (or clear ceramic). You get the protection benefits with minimal visible tint. Pair with clear ceramic on the windshield for maximum heat reduction without darkening anything.
If Nighttime Visibility Is a Priority
Stick with 35%+ on front sides. Going darker than 20% on the fronts noticeably reduces nighttime visibility, which matters for safety. We don’t recommend sub-20% front tint for drivers who do a lot of night driving.
Don’t Forget the Windshield
Regardless of side-window choice, clear ceramic film (70%+) on the windshield is one of the highest-value upgrades in Florida — major heat reduction with no visible darkening. See our windshield tinting guide for details on what’s legal and possible.
Limo Tint — Is 5% Too Dark?
5% VLT, or “limo tint,” is the darkest common option. It’s nearly opaque from outside — you genuinely cannot see in. Here’s the honest assessment.
Where 5% Makes Sense
- SUV/truck rear windows — Legal and popular for privacy
- Cargo areas — Hiding tools, gear, or valuables
- The limo look — Full blackout aesthetic on the rears
Where 5% Doesn’t Work
- Any front side window — Illegal on all vehicles in Florida (28% minimum on fronts)
- Sedan rear windows — Below the 15% legal minimum for sedans
- Drivers who value nighttime visibility — 5% severely limits visibility at night; backing up and lane changes in the dark become genuinely harder
Our Honest Take
5% looks great on the rear of an SUV or truck and is fully legal there. But we caution customers about putting it anywhere that affects the driver’s visibility. Even where it’s legal, very dark rear tint can make nighttime backing and over-the-shoulder checks harder. For most people, 15–20% on the rears delivers a near-blackout look with better practical visibility. We’ll give you our honest recommendation based on how you use the vehicle.
Frequently Asked Questions
What does VLT mean?
VLT stands for Visible Light Transmission — the percentage of light that passes through the tint. Lower VLT means darker tint. A 5% VLT is very dark (limo), while 70% is nearly clear.
Does darker tint block more heat?
Not necessarily. Heat rejection depends on the film material (ceramic, carbon, dyed), not the darkness. A clear 70% ceramic film blocks more heat than a dark 20% dyed film. Choose the film type for performance and the VLT for appearance and privacy.
What’s the legal tint limit in Florida?
Front side windows must be 28% VLT or lighter on all vehicles. Sedan rear windows must be 15%+. SUVs and trucks have no darkness limit on rear windows. The windshield allows non-reflective tint above the AS-1 line only. See our Florida window tinting laws guide.
What’s the most popular tint darkness?
35% on the front windows is the most popular and is fully legal on sedans. Many customers pair it with 20% or darker on the rears for added privacy. On SUVs and trucks, 35% front with 5% rear is a common blackout configuration.
Is 5% limo tint legal in Florida?
Only on the rear windows of SUVs, trucks, and vans (which have no rear darkness limit). It is not legal on any front side window, and it’s below the legal minimum for sedan rear windows.
Will dark tint get me pulled over?
Tint that’s darker than the legal limit (especially on front windows) can result in a stop and citation in Florida. We install legal tint and advise you on the limits during the consultation so you stay compliant. See our Florida window tinting laws guide.
Can I go darker on the back than the front?
Yes — and most people do. Sedans can go down to 15% on the rears with 28%+ on the fronts. SUVs and trucks can go all the way to 5% on the rears. A graduated look (lighter front, darker rear) is both legal and popular.
Choose Your Tint Darkness at Tinterz
The best way to pick a darkness level is to see it on real glass. Come into any of our three shops, compare samples side by side, and we’ll recommend a legal, great-looking configuration based on your vehicle and how you drive.
Book your appointment:
- Orlando — (407) 550-0072
- Tampa — (813) 333-5068
- Clearwater — (727) 476-7744
Explore our window tinting services, check the legal limits in our Florida window tinting laws guide, or see pricing in our window tinting cost guide.
