1.Purple light Peak wavelength: 395nm;Blue light Peak wavelength: 430nm;Visible light Peak wavelength: 380nm-760nm <br> 2.Size of Testing sample: &gt; ￠3mm<br> 3.PL transmission meter, BL transmission meter, Light Transmittance Meter, Three function in ONE device.

<p>1. Test 430nm blue light, 395nm purple light, visible light of 380nm-760nm transmittance and  UV 400<br>2. Three transmittance can be obtained by measuring one time<br>3. Real-time dynamic self-calibration function<br>4. 1mm test aperture</p>