special price: wuben e05 900lm from 1,280B -> 980B only

Weltool M2-BF UV 365nm

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Regular price 2,280.00 ฿

M2 UV flashlight is also called black light, adopts high efficiency pure 365nm UV-A LED with the LED radiation flux of 2060mW. The flashlight body is compact with a steel clip included as an accessory, powered by 1 piece of Li-ion battery, compact and portable.

The visible wavelength range to human eye is 400-700 nm, while the dominant wavelength of the M2 flashlight is 365 nm with less visible light, so the M2 is not "bright" in eyes and it's not designed for use of illumination. From which it proves that it's pure 365 nm wavelength with a better performance than the ultraviolet light of other wavelengths (380-400 nm). 

M2 series have 3 models:

  • M2-OL (Even-beam)
  • M2-CF (Focused high radiation beam)
  • M2-BF (Focused pure beam)

No matter you are a law enforcement officer, mechanic, engineer, maintenance person or workman, warehouse manager, outdoor enthusiast, laboratory researcher, M2 "Purple Beard" can be a good helper!



Weltool M2-BF UV 365nm Professional Black Light Flashlight

UV curing: Some curable adhesives specify the 365nm UV for rapid curing, M2 UV flashlight can also be applied to ink curing field, such as printing, oil painting and wood instrument processing.

Forensic investigation & evidence collection: Proteinaceous materials emit fluorescence when illuminated by UV light. So M2 can be used to check the body fluid, blood, fingerprint, fiber and also to analyze the bite mark and bruise. UV light usually is used for detection of fraudulent documents such as ID card, visa, passport, credit cards or banknotes. The UV light can be used for arson investigation though the spattering of chemical combustibles and used for car theft forensics by identification of car ID label, and also for vehicle accident analysis.

Non Destructive Testing (NDT): M2 is a compact flashlight especially suitable for on-site fluorescence penetrant testing and fluorescent magnetic particle inspection of special equipment in ships, pressure vessels, draught fan blades and other narrow spaces.

Leaks detecting: By the fluorescence reaction of ethylene glycol in the cooling system, M2 black light can be used to check the leaks of the car radiator and the air-conditioning refrigerant by adding a fluorescent agent. And it works on detecting engine leaks and oil pipeline leaks.

Ore exploration: Some kinds of ore cannot be quickly identified by the naked eye, but they present various colors under UV beam and can be quickly noticed. It also applies to screening of gems, amber and jade, artifacts, antiques, and discovering traces of fraud and glue.

Hygiene: Riboflavin validation in pharmaceutical companies, inspection of human body fluids and other tissues pollutants in public places, cleaning of oil stain, and the presence of traces of urine from rodents such as rats in the warehouse.

Home: Find pet defecations, oil or contaminant in kitchen and bathroom, check sanitary products, clothing, cosmetics, paper towels with fluorescer.

Outdoor activities: The outer shell of the scorpion glows under the M2 UV flashlight's beam, making it easy to find even in the dark. Many mushrooms and flowers, fruits, seeds or some insects, bees, and small crabs are more magical under the illumination of M2 than at night or in daylight.


  • Case Material: Aerospace Aluminum Alloy construction; Black anodized finish
  • Reflector: High reflection reflector of aluminium alloy, fits for long-range usage
  • Emitter: High efficiency UV-A LED, peak wavelength of 365nm, continuous lifetime of about 1000 hours
  • Output:
Tested with Weltool UB18-35 Rechargeable Lithium Battery: Low radiant flux mode High radiant flux mode
LED Radiant flux: 680mW 2060mW
Spectral radiosity @38cm(15in): 2900μW/cm2 10500μW/cm2
Irradiated area (round) diameter of distance @38cm(15in): 38cm
Central beam (round) diameter of distance @38cm(15in): 6cm
Visible spectrum illuminance distance@38cm(15in): ≤  11Lux ≤  31Lux
Runtime(h): Until radiosity falls to 10% 10h25min 4h20min


  • Battery: 1 x 18650 rechargeable Li-ion battery (not included)
  • Switch : Tail cap switch (up to 50,000 presses)
  • No need preheat, press to switch on, reduce the preheat time.
  • 2 adjustable modes, suitable for different usages.
  • Reverse Polarity Protection
  • Over-Discharge Protection
  • Low Voltage Warning
  • Fully regulated output, no PWM, no circuit noise
  • Black filter glass lens, effectively filtrate the visible light beyond 365nm for purer UV beam.
  • Purple oxidized aluminum alloy protection bezel
  • Anti-slip, anti-roll design
  • 1 meter impact resistance
  • O-ring sealed, IP67 water resistance rating
  • Individually serialized
  • Dimensions: (Bezel Dia.) 27.5mm x (Body Dia.) 23mm x (Length)135mm
  • Weight: 80.5 grams (w/o battery)
  • Accessories (included): O-ring


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