Police Security Ultraviolet Inspection Light features UV LEDs that can reveal materials that are not seen through normal lighting such as automotive leaks, pet urine, and blood. It is constructed of lightweight aluminum and is powered by Police Security 2 AAA batteries (included). Product Features:Functions: On/Off Light Output: 395 NM Run Time: 6 Hours Battery Type: 2AAA Alkaline (included) Belt ClipWater Resistant Impact Resistant