Features: 100% Brand new and high quality. Great for checking notes, credit cards, fluorescent inks (invisible inks), cracked glassware, or even crime scene. Strong in UV, but not strong in visible light. The body of this flashlight is built of high quality aluminum alloy, and it has a very solid construction. Internal wiring applies the high efficient booster circuit, and can utilize the batteries in the largest extent. Suitable for outdoor environment, adverse weather conditions. Specifictions: Emitter Type:9 UV LED WL(wave length): 395~400nm Lightbulb/LED Lifespan: 10,000 hours Battery Configuration: 3 x AAA batteries (NOT INCLUDED) Input Voltage: 4.5 v Runtime: About 6-8 hours Switch Type: Clicky/Clickie Switch Location: Tail-cap Lens: Coated Glass Lens Material: Aluminum Alloy Body Color: black Dimensions(L x Head Dia. x Body Dia.):3.62 x 1.06 x 0.98 inch /9.2 x 2.7 x 2.5cm Package Contents: 1 x 9 UV LED Ultra Violet 395~400nm Flashlight Torch