Car Window Film VLT Guide for India

Sun Control guide · 6 min read · Updated

VLT, or visible light transmission, is the percentage of visible light a window film lets through: a lower number means a darker film. Lighter shades keep night visibility clear, while darker shades add privacy but reduce what you can see in low light. Rules on car window film in India have changed over time, so check the current rules with your local RTO or traffic police before choosing a shade.

What VLT means

VLT stands for visible light transmission. A 70% VLT film lets about 70% of visible light through, while a 5% VLT film lets very little through and looks very dark. The final darkness on your car also depends on the glass itself, since factory glass is already slightly tinted.

Veloshield sun control film is available in seven shades: 5%, 15%, 25%, 35%, 50%, 70% and 85% VLT.

How shades differ for glare, privacy and night driving

Darker films cut more glare and add privacy, but they also make it harder to see out at night, in rain and in poorly lit parking areas. Lighter films keep visibility close to clear glass while still reducing glare and helping with UV.

  • Ultra-Clear 85% and Optical Clear 70%: a near factory-glass look with UV protection
  • Clarity Shade 50%: a subtle tint that keeps night visibility in focus
  • Touring Neutral 35% and Executive Smoke 25%: noticeably darker, more glare control and privacy
  • Dark Charcoal 15% and Limo Privacy 5%: very dark, high privacy, limited outward visibility at night

Legal caution: check current rules first

In India, Rule 100 of the Central Motor Vehicles Rules sets minimum visual transmission for safety glass, commonly cited as 70% for front and rear windscreens and 50% for side windows. Courts have also ruled on sun films, including a Supreme Court order in 2012, and how the rules are applied has changed over time.

Because of this, we do not state which shade is legal today. Before you choose a film, confirm the current rules with your local RTO or traffic police. Darker shades in the range offered are not a recommendation for road use, and the responsibility for compliance rests with the vehicle owner.

Why window film helps in Indian summers

Long summer drives and cars parked in open lots mean strong sun through the glass. A sun control film reduces glare and helps block UV, which protects skin and slows fading of leather, fabric and dashboard trim. Lighter films can deliver these UV benefits without a dark look.

How to pick a shade

Start with the legal check, then think about where and when you drive. If you drive often at night or on unlit highways, favour lighter shades for clear visibility. Consider how much glare reduction you want and how the shade will look on your car, and ask your installer to show film samples on your own glass.

  • Confirm current VLT rules with your local RTO or traffic police
  • Prioritise night visibility on the windscreen and front side windows
  • Look at samples on the actual glass in daylight and at night
  • Use the VLT simulator on the Sun Control page to compare looks

Frequently asked questions

What does VLT mean in car window film?

VLT means visible light transmission, the percentage of visible light the film lets through. A higher number is lighter and a lower number is darker.

Is sun film legal on cars in India?

Rules on car window film have changed over time, including CMVR Rule 100 and court orders such as the Supreme Court ruling in 2012. Check the current rules with your local RTO or traffic police before installing any film.

Which VLT shades does Veloshield offer?

Seven shades: 5%, 15%, 25%, 35%, 50%, 70% and 85% VLT, from very dark privacy film to nearly invisible clear film.

Does a lighter film still help with UV?

Yes. Even light films such as 70% and 85% VLT are designed to block UV while keeping a near factory-glass look.

Does dark film affect night driving?

Yes. Darker films reduce how much you can see in low light, rain and unlit roads. Lighter shades keep night visibility closer to clear glass.