Color Changing Lens UV Tester Photochromic Lens Detector Anti Blue-ray Glasses Measurer with 15 LED Lights Testing Tool detector for adults professional
Features:
Press the anti blue light lens on part of the blue light test card and put it into the test area. The color of the unobstructed part of the blue light test card becomes darker.
Used to test whether the glasses/lenses block blue light or color changing.
The color changing lens changes a few seconds after it is placed in the test area.
Lens tester is equipped with 15 LED lights, low heat, low power consumption, energy saving and environmental protection.
15 led purple lights, design, wider detection range.