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Frequently asked questions
All your questions about solar eclipse glasses: safety, ISO 12312-2 certification, eclipse date, delivery, returns.
Are these glasses really safe for eclipse viewing?+
Yes. These glasses are certified ISO 12312-2 and CE Category II — the strictest international standard for solar filters. They block more than 99.99% of intense visible light, harmful UV, and around 97% of infrared radiation. They are tested by an accredited independent laboratory (report ICS-2025-AE-001) and carry EU certificate No. 0068-PPE-0183.
What is ISO 12312-2 certification?+
ISO 12312-2 is the international standard (published by the International Organization for Standardization) that defines performance and safety requirements for filters intended for direct solar observation. Without this certification, a pair of glasses — even very dark ones — does not protect your eyes. Blindness caused by an eclipse is permanent and irreversible.
When and where is the August 12, 2026 solar eclipse visible?+
The total solar eclipse of August 12, 2026 will be visible from Iceland, the Faroe Islands, Spain (Bilbao, Zaragoza, Valencia), the Balearic Islands, and parts of Portugal. Across much of Europe, the eclipse will be partial (up to 90% coverage depending on location). Totality will last between 1 and 2 minutes depending on the observation site. Use our calculator to find precise times for your city.
What are the delivery times?+
Delivery is available across France, Spain, Portugal, the European Union, and the United Kingdom. Timescales vary by country and order date — check the product page for current estimates. Order early: stocks of certified glasses are limited and a shortage is expected as the eclipse approaches.
Can I return my glasses if I change my mind?+
The return policy is set by the seller (Absolute Eclipse). Generally, unopened products can be returned within 14 days of receipt. Please check the terms and conditions on the seller's website for exact details.
Can I use ordinary sunglasses to watch the eclipse?+
No. Sunglasses, even the darkest ones (shade 4), do not provide sufficient protection against direct sunlight. Only an ISO 12312-2 certified filter blocks the required level of radiation. Looking at an eclipse without a proper filter, even for a few seconds, can cause permanent retinal burns (solar retinopathy).