Review on ✨ SuperGuardZ iPad 10.2 Screen Protector - Tempered Glass Anti Blue Light, Eye Protection, Anti-Scratch, HD Clear (9th Gen, 2021 | 8th Gen, 2020 | 7th Gen, 2019) by John Destruction

At first the installation kit was horrible: 2 WET wipes but no DRY wipe which failed to fully clean the screen surface due to the remaining wet marks. The guild stickers weren't good either, they couldn't stick well to the product sheet, basically it's INACCURATE. The most important question is: How can I confirm that it is anti-blue light? The "blue light protection" sticker was simply stuck on the outside of the packaging box, which could make any sale more expensive. A certificate was not included in the description of the display or in the operating instructions. HOW DO I KNOW IT'S THE REAL ANTI-BLUE LIGHT? Basically the only way to tell was from the sticker mentioned above. VERY unreliable! *Update: The backlight on the iPad screen changes color in strong sunlight and appears less blue than normal. So it could actually have a bluish cast.