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Company Profile

1997 Yuan Lung Co., Ltd. established
         Main product : Gift and premium
2004 High power LED flashlight & MR16 LED Lamp published.
2005 UV-A LED flashlight
2006 Dedicated on LED Architectural Lighting
2009 Cooperating with National Taipei University of Technology for
         Industry-university collaboration
2011 ISO 9001 : 2008 certificate obtained
2015 Researching and developing shortwave UV ( UV-C ) LED related products
2016 UV-C Handrail Sterilizer published HUV Handrail Sterilizer
2017 Air Purifier developing

An ultraviolet flashlight is a type of flashlight that emits light in the ultraviolet spectrum. It is used in a wide variety of applications, such as Crime Scenes Investigation (C.S.I.), Leak Detection, Forensic Sciences, Nail Gel Curing, ID Checking, Scorpion Hunting, Detecting Counterfeit Money etc.

Contact us :
TEL:886-2-2901-6168 FAX:886-2-2901-1123
E-mail: katrina@yuanlung.com

Crime Scenes Investigation (C.S.I.)
It is important to decide what light source to use and get the best result in finding traces at the crime scene.

Leak Detection
Some of the most dangerous leaks in the world involve gases that are colorless and sometimes odorless. Refrigerant and hydrocarbon leaks are common problems in refrigeration systems and air conditioners. A UV flashlight can make short work of identifying the source of the leak. Sometimes the leaking gas shows up under UV light.

Forensic Sciences
Forensic science can help investigators understand how blood spatter patterns occur (physics), learn the composition and source of evidence such as drugs and trace materials (chemistry) or determine the identity of an unknown suspect (biology).

Nail Gel Curing
Most gels cure well in wavelengths of 340 to 380 nanometers (nm).
The intensity is according to the wattage of the bulb and the number of bulbs. Another important matter to cure a gel is how far the bulbs are from the fingernails. The farther the bulbs are away from the gel, the slower the gel will cure. If the bulbs are too far away, the gel may not even cure at all.


Detecting Counterfeit money
Under an UV flashlight, you will see a quarter-inch security thread leading from the top to the bottom of the bill. If you don't see this thread line or it is hard to see, the bill is fake.

Checking Credit Cards :
Most credit cards have a hidden ultraviolet security feature that is only visible under the UV light.
Basic features of credit card:
Visa: an image of a dove in the center of the card
American Express: “ AMEX” in one inch letters with a globe in the center
Master Card : capital letters “ M” and “C” on the front of the card.

Scorpions Hunting
The UV flashlight will make scorpions glow brilliantly.

Contact us TEL:886-2-2901-6168 FAX:886-2-2901-1123    E-mail: katrina@yuanlung.com

元龍光電股份有限公司 地址:新北市新莊區福營路257-10號
電話:(02)2901-6168 傳真:(02)2901-1123
E-mail: katrina@yuanlung.com