Nitecore CU6 Chameleon Series Primary UV Flashlight (Dual Mode, 440-Lumens) Battery Type: 1x18650 2xCR123 Maximum output: 440 lumens Flashlights Featuring five individual light sources Two main LEDs plus secondary red, green and blue LEDs Purpose designed for hunting, police investigation, forensics and identification application Dual side switches provide independent control of white and colors LEDs Requires CR123 or 18650 Batteries