QuiqLiteX High Power 385nm Ultraviolet LED is USB rechargeable and provides from 20 up to 75 Lumens of light on demand. The Ultraviolet LED can be used to authenticates passports, currency, driver licenses or any other identifications with ultraviolet markings. The White LED configuration is designed for normal reading, writing and maneuvering in the dark without having to hold a flashlight in your hands. The first push of the On/Off button will activate a single white LED at 20 Lumens. If more light is required, simply push the X-BOOST button to increase up to 75 Lumens. The QuiqLiteX Ultraviolet LED can be activated by pushing the on/off button again within 2 seconds of the 1st push. The QuiqLiteX is equipped with a 10 minute auto-off battery saving timer and continuous Safety Strobe mode, plus QuiqFlare which provides visibility from over 1 mile away. Now includes a new Pupil Gauge located on the back of the QuiqLiteX.