This Hexray 6 Wavelength ALS kit features two, 3-in-1 flashlights. 1 flashlight has a 3 switch mode from 455nm blue, 385nm UV and 530nm Green, the second flashlight switches between 850nm IR, 625nm Red and 590nm Amber. This selection of lights is ideal for semen, urine, saliva, sweat, blood, and...