HQRP® 390 nM UV LED Flashlight + HQRP® UV Chain / UV Radiation Health Tester; * Aluminium Body, Water Resistance, Light on By on/off Switch; * LEDs: 51, Wavelength: 390-395 nanometer; Powered by 3 x AA batteries (not included); * Grate for Room, Security Control, Rodent, Leak Detection; * Art Forgery/Repair Tests. 200 days warranty!