|Item Weight||0.8 ounces|
|Product Dimensions||3.6 x 1.2 x 1.2 inches|
|Item model number||FLT-D|
|Item Package Quantity||1|
|Type of Bulb||led|
JacobsParts FLT-D 365nm 5W UV LED Flashlight with Adjustable Focus for Counterfeit Detection, Document Verification, Photography, and Bodily Fluid Identification
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- 365nm UV light is the best choice for use in document verification, counterfeit detection, photograp
- An adjustable focus allows the user to choose between a small point of high intensity or a larger ar
- 365nm UV light produces a near pure UV output that allows you to see a greater range of colors witho
- Powered by 1 x AA battery (not included)
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If you want maximum effect from "black light" reactive items, 365nm is the best wavelength for this. Ultra-low "visible" light emission shines at a wavelength of 365nm- ensures the stain, not the surface, is illuminated. The 365nm light will appear white on neutral non fluorescent surfaces, where as the 395nm will appear purple. This flashlight produces a near pure UV output which is the optimum frequency for UV fluorescence. The human eye can perceive light between the range of 400nm and 700nm. 400nm light is perceived as the color violet. The ultraviolet spectrum resides below 400nm. A UV light source that is rated at given frequency will in practice produce light that is concentrated around the specified frequency. In the case of 395nm light, some of the light will bleed into the visible spectrum, thereby producing a violet glow. 365nm is well beyond the the visible spectrum, so it can produce clearer florescence, cleaner more vivid colors, and no violet glow. 395nm is less expensive and can work perfectly well for detecting urine and bodily fluids in the dark, but for document verification, counterfeit detection, photography, and other specialty applications 365nm is a much better choice.
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While they both serve my purpose well, I do favor the 395nm light for fluorescing the corals. The 365nm light tends towards a pale blue/grayish hue and shows more white light carryover, and the 395nm is more of a violet tone, but shows brighter fluorescence with less white light carryover. The 365nm does show some of the reds/oranges a little bit better, but overall, I prefer the 395nm.
The torch light itself is very well built, encased in metal and felt extremely solid.
Most recent customer reviews
Bought this because of the stronger output and the 365nm as it was said to activate the UV...Read more
I got it and put a fresh AA battery in it.Read more