Our light testing cards are ideal for both home and professional use. They help you monitor the performance of your by indicating the presence of UVA and . To use, expose the card to the light source. The card will change color, providing a clear indication of the light's wavelength and intensity. Features -Color:Multi -Material:PVC -Size:7.00X2.50X0.10cm/2.75X0.98X0.04in - and reliable: constructed from pvc material, these test cards are designed to be and , ensuring they can withstand regular use - testing: these light effect tester cards can test both uva and wavelengths, making them versatile tools for different light testing needs -Effortless operation: with a simple plugandplay design, these indoor identifiers are easy to use, requiring no additional setup or technical knowledge -Precise measurements: the light intensity meters provide clear and accurate measurements of light wavelengths, ensuring assessment of light -Suitable for various settings: ideal for use in a range of light testing environments, these small test cards are ideal for laboratories, industrial applications, and more Package list: 20 x testing cards