Solar Eclipse Glasses — ISO 12312-2 Certified, Pack of 10

The sun outputs 3.8×10²⁶ watts — looking at it unprotected for one second can permanently destroy photoreceptors.

ISO 12312-2 certified solar viewers attenuate sunlight by a factor of 100,000× (optical density 5.0), filtering all UV, IR, and visible light to safe levels for direct solar observation. Use for solar eclipse observation, sunspot tracking, Venus transits, and safe daytime sun observation with binoculars or telescopes (when properly adapted). These are not sunglasses. They are optical instruments for solar astronomy.

• ISO 12312-2:2015 certified (international safety standard)
• Optical density: 5.0 | Transmission: 0.001%
• Black polymer solar filter — sharper than mylar, no colour distortion
• Pack of 10 pairs | Cardboard frame

Every purchase directly funds independent physics research at the Golden Physics Project.