niceEshop(TM) LED UV Ultra Violet Blacklight Black Light Flashlight(Black) Length:146mm/5.7inch; Top Diameter:56mm/2.2inch; Tail Diameter:35mm/1.4inch Rugged and durable - shock resistant; Aluminum construction with knurled grip "O" rings for water resistance (not submersible) 51 LED UV395-400NM Ultra Violet Lights; Lighting Time: 6-8hrs Covers a large area without loss of UV light intensity