45x Ultraviolet LED Illuminated Pocket Microscope with Storage Case. UV Light can be used for close inspeciton of; gems, minerals, driver's licenses, passports, blood trails, urine, etc. Illumination provided by two UV LEDs. Microscope can be separated from LED Illumination assembly. 1 7/16 inches in length, 1 3/8 inches wide, 9/16 inch in thick. Requires three AG7 / LR927 Batteries which are included.