Photochromic Cycling Glasses Singa Cycling Sunglasses UV400 Runnning Sunglasses Eyepieces Bicycle Eyewear Sunglasses Equipment

09 / With BOX

$22.00

$22.00 $22.27

Photochromic Cycling Glasses Singa Cycling Sunglasses UV400 Runnning Sunglasses Eyepieces Bicycle Eyewear Sunglasses Equipment

$22.00

$22.00 $22.27

Color 09 06 05 10 07 02 08 04 01

Lenses ColorWith BOX

SPECIFICATIONS

Brand Name: Singa

Certification: CE

Choice: yes

Frame Color: MULTI

Frame Material: TR-90

Gender: Unisex

High-concerned chemical: None

Item Type: EYEWEAR

Lens Height: 50

Lens Width: 145

Lens coating: Uv protection coating

Lenses Material: Polycarbonate

Lenses Optical Attribute: photochromic

Model Number: SG9025

Origin: Mainland China

Sport Type: cycling

Type: Road Bike Sunglasses

Polycarbonate Frame

Durable and lightweight, the polycarbonate frame provides long-lasting wear and comfort for avid cyclists.

CE Certified

Rest assured with CE certification, ensuring the Sunglasses meet European safety standards for cycling gear.

UV400 Protection

Shield your eyes from harmful UV rays with UV400 protection, offering comprehensive eye care during outdoor activities.

Unisex Design

Singa Cycling Sunglasses feature an unisex design, making them suitable for all gender cyclists.

Photochromic Lenses

Experience adaptable vision with photochromic lenses that darken in sunlight, ensuring clear sight during cycling.

Professional Explanation & Reminder for Photochromic Lenses

Core Working Principle for Outdoor Sports & Daily Work Scenarios

The tint depth of photochromic lenses deployed for outdoor sports and field work is directly governed by ambient ultraviolet (UV) radiation intensity outdoors.

Under intense direct sunlight with high UV levels, the photochromic molecules embedded inside the lens matrix activate fully to deepen the lens tint, effectively cutting harsh glare and blocking harmful UV rays to stabilize visual comfort during running, cycling, hiking and other outdoor sports, as well as all-day field inspection, patrol and open-air operational tasks. When outdoor UV weakens (such as cloudy weather, tree shade or building shelter), the lens fades correspondingly to maintain appropriate light transmittance.

In standard indoor environments without direct natural ultraviolet penetration (regular LED/fluorescent indoor lighting emits negligible UV radiation), the photochromic compounds stay dormant completely. The lenses maintain their original clear base tone and will not darken spontaneously, ensuring unaltered visual clarity for desk work, document review and fine indoor tasks.

Critical Usage Reminders

UV Dependence Note

Photochromic tint adjustment responds to ultraviolet rather than visible light alone. Lenses may fail to reach maximum shading effect inside vehicles, as automotive windshields filter most incoming UV rays even under bright visible sunlight.
Transition Lag Alert

Tint deepening and fading involve a short chemical reaction lag. When moving rapidly between open bright outdoor zones and shaded areas during high-intensity sports, allow brief time for the lens to adapt to light changes.
Indoor Misconception Correction

Ordinary indoor artificial light sources do not trigger lens darkening. Unintentional tint shifts indoors usually stem from residual coloration after prolonged outdoor exposure, not activation by indoor lighting.
Extreme Scenario Tip

For prolonged high-glare outdoor sports such as alpine skiing and seaside surfing, dedicated polarized sunglasses are recommended as an alternative, for photochromic lenses have limits on peak shading depth under extreme UV exposure.