DCOU Handheld Blacklight Stain & Urine Detector Torch. The 12 LED Ultra Violet Flashlight to Find Stains on Carpet, Rugs or Furniture Material. 3 x AAA Batteries Included & Inserted (Black) UV/Black light is specially designed to reveal dried urine stains on furniture, floors, rugs, aquarium and more! Dimensions: Tube Length 3.85", Head Diameter 1.22", Tail Diameter 1.14" Case Material: Aerospace grade aluminum 6061-T6 Light source: 12 UV led. Wavelength: 395-410NM Comes with 3 x AAA Alkaline Batteries!