Weltool M2 Purple Beard UV 365 Professional Flashlight

The M2 UV flashlight, also called a black light, adopts high efficiency pure 365nm UV-A LED with 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 ultraviolet lights of other wavelengths (380-400 nm).


• Case Material: Aerospace Aluminum Alloy construction; Black anodized finish

• Battery: 1 x 18650 li-ion battery (not included)

• Switch: Tail cap switch (up to 50,000 presses)

• No need to 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

• High light transmission tempered glass lens

• Purple oxidized aluminum alloy protection bezel

• Anti-slip, anti-roll design

• 1 meter impact resistance

• 0-ring sealed, IP67 water resistance rating

• Individually serialized

• Accessories (included): 0-ring


Warning: This product is suitable for professional use. Do not use M2 flashlight to illuminate the human body. Do not Illuminate eyes or expose to skin for a long time. Do not illuminate the reflective objects that can be reflected, such as mirror or glass. Please wear professional UV protective glasses and keep away from children!    


M2 "Purple Beard" is a professional-grade UV detection flashlight, which is more suitable for professional fields.

UV curing: Some curable adhesives specify the 365nm UV for rapid curing. The M2 UV flashlight can also be applied to ink curing, 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 for body fluid, blood, fingerprint, fiber and also to analyze bite marks and bruises. UV light usually is used for detection of fraudulent documents such as ID cards, visas, passports, 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 labels, and also for vehicle accident analysis.

UV on computer fans

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.

 UV reading maps

Leaks detecting: By the fluorescence reaction of ethylene glycol in the cooling system, M2 black light can be used to check for 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 colours 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.

UV 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 stains, and the presence of traces of urine from rodents such as rats in the warehouse.

Home: Find pet defecations, oil or contaminants 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. 


The M2 series has 3 models: M2-0L (even-beam), M2-CF (Focused high radiation beam), and nu-or (Focused pure beam). No matter if you are a law enforcement officer, mechanic, engineer, maintenance person or workman, warehouse manager, outdoor enthusiast, or laboratory researcher, M2 "Purple Beard" can be a good helper!

Three models for  Weltool M2 series



Black lightHouse inspectorsLed flashlightUv flashlightWeltoolWeltool m2 purple beard

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