Designed for Bright Light
A fixed dark tint reduces the amount of visible light reaching your eyes for more comfortable viewing in bright daytime conditions.
VLT
What is VLT?
Darker view · Lower VLTBrighter view · Higher VLT
VLT reference bands; each band is expanded for readability, not drawn to a linear scale.
VLT = Visible Light Transmission. It is the percentage of visible light that passes through the lens. A lower percentage gives a darker view; a higher percentage gives a brighter view.
VLT describes lens brightness. Check the lens specifications for this variant.
This lens provides UV400 protection. Lower VLT gives a darker view; it does not mean stronger UV protection. Photochromic lenses retain UV400 protection in both lighter and darker states.
Explore UV400 & VLT →Product Details
Fit type: Fit-Over
Style: Square
Frame material: TR90
Lens: Polarized UV400
Model: TH-DY030
Maximum compatible prescription frame: 140 × 51 mm
Product Measurements
- Lens width: 57 mm
- Lens height: 48 mm
- Bridge width: 16 mm
- Temple length: 140 mm
- Overall width: 151 mm
- Overall height: 54 mm
Measurements are taken manually and may vary by approximately 1–2 mm.
Not sure how to measure? Find Your Fit →
What's Included
Soft pouch, cleaning cloth, sports lanyard and polarization test card.
Polarized UV400 Fit-Over Sunglasses – Square TH-DY030
Designed to wear comfortably over prescription or reading glasses.
Polarized · UV400 Protection
Color
Glossy Brown/Tea
Regular price
$26.99
Shipping calculated at checkout.
LENS TECHNOLOGY
Daytime Polarized + UV400
Glare reduction and UV protection for bright daylight and everyday outdoor use.
01
CORE FUNCTION
See what the lens is designed to do.
UV400 Protection
UV400 lenses are designed to block UVA and UVB wavelengths up to 400 nm.
Polarized Glare Reduction
Polarized lenses help reduce reflected glare from roads, water and other bright surfaces for more comfortable outdoor vision.
02
MADE FOR
Where this lens fits into your day.
BRIGHT DAYLIGHT
Fixed tint for strong daytime light.
DAYTIME DRIVING
Helps reduce reflected road glare.
EVERYDAY OUTDOORS
For walking, travel, water and other bright outdoor settings.
LENS FAQ
Questions about this lens
Does this lens provide UV400 protection?
Yes. All TINHAO lens types provide UV400 protection against UVA and UVB wavelengths up to 400 nm, including yellow-tint lenses and photochromic lenses in both lighter and darker states. VLT describes visible-light transmission; it does not measure UV protection.
What does polarization do?
Polarization helps reduce certain reflected glare from surfaces such as roads and water.
Is UV400 the same as polarization?
No. UV400 describes ultraviolet protection, while polarization addresses certain reflected glare.
Are fixed dark polarized lenses intended for nighttime use?
No. This lens type is designed primarily for bright daytime and outdoor conditions.
