Description
Details
Hapivida 10 Set Anti-blue Light Test Card: Irradiate the white area of the anti-blue light test card with a blue light generator, the stronger the blue light, the darker the discolouration. The cardstock irradiated by the blue light generator will regain its colour after 1-2 minutes, the anti-blue light test card can be reused, very convenient.
Key features
- Irradiate the white area of the anti-blue light test card with a blue light generator, the stronger the blue light, the darker the discolouration
- The cardstock irradiated by the blue light generator will regain its colour after 1-2 minutes, the anti-blue light test card can be reused, very convenient
- Put the glasses lens on the test card and irradiate the cardboard with blue light generator, quickly test whether your glasses have anti-blue light function
Product specifics
- Brand: Hapivida
- Category: Reading Glasses
- Part number: Hapivida39s2zcwude