Anti Blue Light Screen Protector Test Card Test Light Glasses Uv Test Accessory
Features: The for the blue light, the deeper the discoloration.
1000 pieces in the packaging to meet your different requirements.
Simple structure, which provides convenience and easiness to operate.
Can be used for a long term, suits for home or store use.
Designed to test blue light goggles, use a blue light emitter to in the white square

Specifications: Material: PVC
Size: approx 39x61mm/1.5x2.4in

Package Includes: 100x Blue Light Test Card

note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item.