What Does UV400 Mean on Sunglasses? A Simple Explanation

What Does UV400 Mean?

UV400 is a common sunglasses label referring to protection against ultraviolet radiation through wavelengths up to 400 nanometers. In practical shopping terms, consumers should look for sunglasses that provide protection against UVA and UVB rays.

UV protection is important because sunlight contains ultraviolet radiation that can affect the eyes. Sunglasses should be worn in bright outdoor conditions, especially when exposure is prolonged.

Is UV400 the Same as Polarized?

No. UV400 refers to UV protection, while polarization is a lens feature designed to reduce certain reflected glare. A pair can have both features, and they serve different purposes.

Wearluxurys recommends checking lens specifications before buying sunglasses online. Choose reliable UV protection first, then select polarization and frame style according to your lifestyle.