Indoors or under the sun to test the lens whether photochromic Lens, or test the photochromic Lens's color. |
Features
Do not need sunlight to make photochromic Lens change color at once. Convenient and quick operation. |
Indoors or under the sun to test the lens whether photochromic Lens, or test the photochromic Lens's color. |
Features
Do not need sunlight to make photochromic Lens change color at once. Convenient and quick operation. |