# Sunglasses TIFOSI RIVET FOTOTEC gunmetal with Light Night photochromic lens (transmission 75.9%–27.7%)

**URL:** https://aio.lv/en/product--tifosi-tfi-1810300331--12402712
**Data updated:** 2026-04-29 13:51 (EEST)
**Category:** Glasses
**Manufacturer:** TIFOSI
**Manufacturer code:** TFI-1810300331
**EAN:** 848869022937
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

TIFOSI RIVET FOTOTEC gunmetal are sport sunglasses featuring a single Light Night photochromic lens that adapts between 75.9% and 27.7% light transmission. Designed for active use, they provide variable tinting in changing light conditions, eye protection from glare and UV, and are suitable for cycling, running and outdoor training where adaptive lens performance is needed.

## Long description

TIFOSI RIVET FOTOTEC gunmetal are sport sunglasses built around a single Light Night photochromic lens that shifts between approximately 75.9% and 27.7% light transmission. The frame is designed for active use and holds the curved lens securely while providing coverage to reduce peripheral glare. These sunglasses combine adaptive tinting with basic impact resistance and UV attenuation to support outdoor training in variable light conditions.
Advantages
The Light Night photochromic lens adjusts tint automatically as ambient light changes, reducing the need to swap lenses when moving between shaded and sunlit environments. The single-lens design offers an unobstructed field of view and uniform protection across both eyes. The gunmetal frame provides a neutral aesthetic and a durable mounting for the lens, while the lens transmission range makes the glasses versatile for low light to moderate sun conditions.
Suitable for
Road and recreational cycling where changing light or tunnel transitions occur
Running and trail training during mixed sun and shade conditions
General outdoor fitness activities and walking in variable weather
When it may not be suitable
These sunglasses are configured for variable light and low-to-moderate sun exposure; they may not provide sufficient darkness for prolonged use in very bright, high-glare environments or high-mountain conditions. They are not specialized safety eyewear for industrial hazards or for tasks that require certified impact protection beyond standard sports use.
Key specifications
Lens type: Light Night photochromic single lens
Light transmission range: approximately 75.9% (lightest) to 27.7% (darkest)
Frame color and material: gunmetal finish with sport fit design
Coverage: wraparound single-lens design for wide field of view and peripheral shielding
Intended protection: UV attenuation suitable for outdoor sports (photochromic function adjusts tint)
How to use
Wear the sunglasses with the nose bridge and temple arms adjusted for a secure, comfortable fit that prevents movement during activity. Allow the photochromic lens a short time to transition when moving from darker to brighter environments; full darkening or clearing can take several seconds to minutes depending on temperature. Clean lenses with a soft microfiber cloth and mild lens cleaner to avoid surface damage; avoid abrasive materials and harsh chemicals.
What to consider before purchase
Desired light conditions: suitable for low to moderate sun but not for extremely bright conditions
Fit preference: single-lens wraparound design for wide coverage—verify fit with your face shape
Activity type: intended for sports and outdoor training rather than industrial safety use
Usage recommendations
For cycling or running in mixed light, use these TIFOSI RIVET FOTOTEC gunmetal sunglasses to reduce transitions between lenses; allow time for the photochromic lens to adapt and keep a soft cloth with you to maintain clear visibility.

## 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

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