# Sunglasses TIFOSI RAIL FOTOTEC — matte black frame, Clarion Red photochromic lens (74%–14% light transmission)

**URL:** https://aio.lv/en/product--tifosi-tfi-1710300130--11053601
**Data updated:** 2026-03-07 18:14 (EET)
**Category:** Glasses
**Manufacturer:** TIFOSI
**Manufacturer code:** TFI-1710300130
**EAN:** 0810074140515
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

TIFOSI RAIL FOTOTEC are sport sunglasses with a matte black frame and a Clarion Red photochromic lens that shifts between 74% and 14% light transmission. Designed for cycling and outdoor sports, they provide variable tinting for changing light conditions, wraparound coverage, and lightweight construction for extended wear. Suitable for daily rides, running, and multisport use.

## Long description

TIFOSI RAIL FOTOTEC sport sunglasses feature a matte black frame combined with a Clarion Red photochromic lens that adapts automatically to changing light conditions. The lens darkens from high visible light transmission to a low tint range, offering a balance between clarity and sun protection. The wraparound frame provides broad coverage for eye protection during cycling, running and other outdoor activities while the lightweight construction supports comfortable extended wear.
Advantages
The Clarion Red photochromic lens adjusts its tint continuously between approximately 74% and 14% visible light transmission, reducing glare and preserving contrast as lighting changes. The matte black frame is designed for secure fit and unobtrusive style, while the wraparound lens shape increases peripheral protection from wind and debris. Materials are selected to keep overall weight low for long-duration comfort and to maintain stable fit during active movement.
Suitable for
Cycling on roads and trails
Running and jogging in mixed light
Multisport training and outdoor fitness
Commuting and daily rides with variable weather
Key specifications
Frame finish: matte black
Lens type: Clarion Red photochromic
Light transmission range: approximately 74% (lightest) to 14% (darkest)
Coverage: wraparound design for extended peripheral protection
Weight: lightweight construction suitable for extended wear
Intended use: cycling, running, multisport outdoor activities
How to use
Wear the sunglasses during outdoor activities to benefit from automatic tint adjustment as ambient light changes. Position the frame so the nose pads and temple arms sit comfortably and securely; adjust temple tension gently if necessary to improve fit. Clean the lens with a microfiber cloth and mild lens cleaner to maintain optical clarity; avoid abrasive materials. Store the sunglasses in a protective case when not in use to prevent scratches and maintain photochromic performance.
Usage recommendations
For best performance during variable light conditions, use the sunglasses continuously rather than switching between multiple pairs. Allow a short transition time when moving between bright and shaded environments for the photochromic lens to reach its optimal tint level. Avoid prolonged exposure of the lenses to extreme heat when stored, and inspect fit before high-speed cycling to ensure stable positioning.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All TIFOSI products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized TIFOSI service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11053601/61723127_large.webp